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Find cheap flights from Boise to the United States from $40

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boise to the United States departing on 5/22. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 6/8
Sat 6/15

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Best United States Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

New York
Newark2 stops$256
Los Angeles
Los Angeles1 stop$112
Las Vegas
Las Vegasnonstop$40
Miami
Miami2 stops$182
San Francisco
San Franciscononstop$177
Chicago
Chicago1 stop$163
Boston
Boston2 stops$219
Washington, D.C.
Baltimore1 stop$133
Denver
Denvernonstop$177
Seattle
Seattle1 stop$105
Fort Lauderdale
Fort Lauderdale2 stops$154
Atlanta
Atlanta2 stops$195
Dallas
Dallas1 stop$123
Tampa
Tampa1 stop$209
Houston
Houston1 stop$127
Honolulu
Honolulu1 stop$400
San Diego
San Diego1 stop$125
Philadelphia
Philadelphia1 stop$174

Good to know

Low season

January

High season

October

Cheapest flight

$40
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly and prices are also 14% lower on average.
Flight from Boise to San Diego

FAQs - booking United States flights

  • How does KAYAK find such low prices on flights from Boise to the United States?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boise to the United States.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boise to the United States?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to the United States from Boise is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boise to the United States?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to the United States with an airline and back to Boise with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boise to the United States?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to the United States from Boise up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to the United States

  • Looking for a cheap flight? 25% of our users found tickets from Boise to the following destinations at these prices or less: Denver $208 one-way - $386 round-trip; Dallas $239 one-way - $487 round-trip; Seattle $188 one-way - $384 round-trip
  • Morning departure is around 66% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Boise to the United States

 
Need help choosing which airline to fly with from Boise to the United States? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9141 reviews
8.2Boarding
7.3Food
7.3Entertainment
7.9Comfort
8.6Crew
Airline reviews

After upgrading and paying for seat I was bumped from my seat. When I went to ask why she said I wasn’t assigned a seat because the ticket I purchased. After kindly explaining to her I upgraded the night before and paid for that seat she said how I was wrong and that something must have happened. I showed her my receipt and she still said there was an error. This is why I only fly delta. The flight attendant was rude as well but I don’t want to waste anymore time talking about how poor Alaska is. Delta here I come!

2.0 MediocreBradley, May 2024BOI - SEA
Read more about Alaska Airlines reviews

After upgrading and paying for seat I was bumped from my seat. When I went to ask why she said I wasn’t assigned a seat because the ticket I purchased. After kindly explaining to her I upgraded the night before and paid for that seat she said how I was wrong and that something must have happened. I showed her my receipt and she still said there was an error. This is why I only fly delta. The flight attendant was rude as well but I don’t want to waste anymore time talking about how poor Alaska is. Delta here I come!

Flight cancelled an hour before takeoff due to "unscheduled maintenance". New flight makes me have to wait for 5 hours in the airport, at a gate totally on the other side of where I'm at, requiring me to take a tram to get from the N terminal, to the C terminal. After waiting for 5 hours I'm informed my new flight is no longer at the gate I'm at, but instead is back in the N terminal where I was previously.

Ashley - the flight attendant from OMA to SEA - was phenomenal. I was traveling alone with my 4 month old and she made every accommodation possible and went out of her way to make sure my experience was as comfortable as possible. Give this woman a massive raise!

No tv, movies for a 6 hour flight! Worst airline I have ever travelled!

boarding was easy and the 737 Max was comfortable and roomy but that was the only good.. there was a child screaming at the top of his lungs for the entire loading, taxiing and part of the flight and no one in the crew said anything or offered any assistance.

Delayed an hour and sat without updates. Ended up an hour late to destination

It was great; it was on time, everything went smoothly, the crew was excellent. It was just uncomfortable for the usual reasons; completely full fight, could barely move because the space was so small. The expected stuff with every airline.

The flight was decent again if there was a place that you could put crying children that would be great. Or maybe make a rule against allowing infants on the plane.

The flight was great. The pilot was great. It was really annoying that the staff had facemasks on. Hard to hear what they’re saying when a mask is covering their mouth. I enjoyed the flight, but there was a crying baby in front of me. You guys should offer flights baby free. I would be very into that me and the person next to me discussed how they should make free flights for all of us that don’t have kids. I wouldn’t mind paying extra to not have to deal with the smell of a dirty diaper or screaming of a child. Also, if they had a separate room, the babies could be sent to the back with a curtain or something muddle the horrible sounds.

Smooth. Courteous. Fun. One problem: the wheels on my checked roller back were broken when I picked up baggage at destination. Must have happened during flight baggage handling but I don’t know where.

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The pilots were good. Disappointing when planes don't have electrical ports

I liked the piloting of the aircraft. Very disappointed about lack of electrical ports. Also, although a short flight. there was enough time to hand out snacks to comfort + seats as was done for first class.

Check in etc was very good. As for on the plane, it was like flying in a freezer. It was so cold, i have flown for years and never been so cold on a plane. Staff on board said its always cold when flying which is a load of rubbish. They wouldnt put any heating on and now i have the flu because of this .

I’ve had a couple flights this week on United that were delayed by an hour or more

Surprisingly easy! I was hesitant to try this, but the cost swayed me. I actually felt like I had less stress than all the taxiing and possible delays that occur with short regional flights where you spend less time in the air than getting to and from the plane..

This flight was delayed multiple times and eventually canceled around 2-3ish. Original take off time was around 10:30am. By 3, there were no other options out of Houston, so stuck in Houston for from 3pm - 11am the next day.

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

All flights were on time and boarding was issue free

Left from gate 30 minutes before flight. Never been late to a flight ever. It says 15 minutes before explicitly on the ticket.

I like the boarding process, it was fast. The seat doesn’t have a TV for a long flight and food wasn’t served, just snacks.

Use planes with TVs on flights over 4 hours. The free entertainment was a cheap in between solution for a very long flight that you don't even bother providing meals or decent snacks.

Even though we left CMI late, we mostly made up the time.

Delayed almost 4 hours for a 45 minute flight with no explanation.

Again, multiple delays and I eventually just canceled and drove!

Great crew. We were delayed so that late passengers could get on the flight. Love the bedding in business class. Good food. Great experience.

The CX617 from HK to BKK was delayed more than 1.5 hours.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

All four American Airlines flights I took in last seven days were delayed. Caused me loads of problems, missed meetings, loss of time and money.

For it to have left on time! Instead of two hours early with zero notice

Flight kept delayed from morning to late afternoon so I had to make other arrangements

Crew was nice, explained emergency protocol very well. Flight took off and arrived on time. Pilot explained the small delay that occurred with docking and providing updates. I would definitely fly spirit again.

Terrible… missed our flight due to ridiculously long time to go thru baggage check-in!

The crew was not great or professional. It seemed like they didn't really want to be there. A true lack of effort for accommodating customers.

Everything was really good but the seats are not very comfortable.

I paid for WiFi, but it (WiFi) was very very slow, will never take again! Impossible open Utube 😤😤😤

I had no legroom, although I paid for extra legroom. I could barely put my bag in front of my feet and under the seat. The Wi-Fi was horrible. In fact the flight attendant said that they had to reboot it and see if it was going to work and never did.

The guy with severe body odor sat next to me. For the whole duration of the flight it was a torture. The airline should have better policy on limiting people with bad body odor to board the flight. Passengers should not be the ones to endure bad odor for the whole duration of the flight. The airline should be e the one to ensure decent air quality for ever passenger.

Overall it was a miserable experience... I will never fly spirit for more than a 3 hour flight or overnight.

Book cheap flights from Boise to the United States

Recent round-trip flight deals

6/15Sat
nonstopSpirit Airlines
1h 56mBOI-LAS
6/18Tue
nonstopSpirit Airlines
1h 58mLAS-BOI
$54
6/8Sat
nonstopSpirit Airlines
1h 55mBOI-LAS
6/12Wed
nonstopSpirit Airlines
2h 00mLAS-BOI
$55
6/1Sat
nonstopAlaska Airlines
1h 27mBOI-SEA
6/1Sat
nonstopAlaska Airlines
1h 24mSEA-BOI
$171
6/10Mon
nonstopAlaska Airlines
1h 29mBOI-SEA
6/11Tue
nonstopAlaska Airlines
1h 25mSEA-BOI
$177
6/5Wed
nonstopUnited Airlines
2h 05mBOI-DEN
6/12Wed
nonstopUnited Airlines
2h 07mDEN-BOI
$177
10/8Tue
nonstopAmerican Airlines
2h 11mBOI-PHX
10/15Tue
nonstopAmerican Airlines
2h 04mPHX-BOI
$184
6/5Wed
nonstopAmerican Airlines
2h 15mBOI-PHX
6/12Wed
nonstopAmerican Airlines
2h 01mPHX-BOI
$189
8/19Mon
nonstopUnited Airlines
1h 55mBOI-DEN
8/21Wed
nonstopUnited Airlines
2h 03mDEN-BOI
$192
6/5Wed
1 stopDelta
6h 34mBOI-DEN
6/12Wed
1 stopDelta
3h 50mDEN-BOI
$196
5/29Wed
nonstopDelta
2h 19mBOI-LAX
6/4Tue
nonstopDelta
2h 03mLAX-BOI
$207

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Recent one-way flight deals

5/22Wed
1 stopSpirit Airlines
13h 28mBOI-SAN
$40
6/5Wed
1 stopSpirit Airlines
14h 47mBOI-PHX
$44
6/11Tue
nonstopDelta
1h 43mBOI-SEA
$79
6/8Sat
nonstopDelta
1h 35mBOI-SEA
$89
8/6Tue
nonstopUnited Airlines
1h 58mBOI-DEN
$89
7/10Wed
1 stopUnited Airlines
6h 47mBOI-SEA
$93
5/18Sat
1 stopAlaska Airlines
6h 41mBOI-PHX
$104
9/26Thu
nonstopAmerican Airlines
2h 11mBOI-PHX
$105
6/5Wed
1 stopAmerican Airlines
5h 36mBOI-LAS
$110
5/18Sat
nonstopAlaska Airlines
2h 05mBOI-PHX
$115

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Last minute flights from Boise to the United States

Last minute flight, train and bus deals

5/14Tue
multi-stopSpirit Airlines
3h 38mBOI-SAN
5/15Wed
multi-stopSpirit Airlines
7h 43mSAN-BOI
$109
5/13Mon
nonstopSpirit Airlines
1h 49mBOI-LAS
5/15Wed
nonstopSpirit Airlines
2h 07mLAS-BOI
$123
5/14Tue
multi-stopAlaska Airlines
7h 00mBOI-PHX
5/15Wed
multi-stopAlaska Airlines
7h 53mPHX-BOI
$208
5/10Fri
multi-stopDelta
6h 11mBOI-SAN
5/12Sun
multi-stopDelta
7h 08mSAN-BOI
$226
5/11Sat
nonstopAlaska Airlines
2h 10mBOI-PHX
5/18Sat
multi-stopAlaska Airlines
7h 07mPHX-BOI
$248
5/11Sat
nonstopAmerican Airlines
2h 10mBOI-PHX
5/21Tue
nonstopAmerican Airlines
2h 11mPHX-BOI
$289
5/11Sat
nonstopAmerican Airlines
2h 10mBOI-PHX
5/11Sat
nonstopAmerican Airlines
2h 11mPHX-BOI
$333
5/13Mon
multi-stopUnited Airlines
4h 43mBOI-PHX
5/14Tue
multi-stopUnited Airlines
4h 45mPHX-BOI
$353
5/11Sat
multi-stopDelta
5h 09mBOI-PHX
5/13Mon
multi-stopDelta
4h 27mPHX-BOI
$358
5/13Mon
multi-stopUnited Airlines
5h 22mBOI-LAS
5/18Sat
multi-stopUnited Airlines
4h 17mLAS-BOI
$467

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Boise - United States Flights

Departure:

Boise (BOI)United States

Return flight deals:

United States - Boise

Cabin classes:

$248
$406
$303
$52

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