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Find cheap flights from Washington Dulles Airport to Saint Lucia from $328

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Saint Lucia departing on 6/23. 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
Thu 7/11
Thu 7/18

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Good to know

Low season

September

High season

April

Cheapest flight

$328
Best time to beat the crowds but there is an average 24% increase in price.
Most popular time to fly and prices are also 27% lower on average.
Flight from Washington Dulles Airport to Castries

FAQs - booking Saint Lucia flights

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Saint Lucia?

    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 Washington Dulles Airport to Saint Lucia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Saint Lucia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Saint Lucia from Washington Dulles Airport 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 Washington Dulles Airport to Saint Lucia?

    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 Saint Lucia with an airline and back to Washington Dulles Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Saint Lucia?

    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 Saint Lucia from Washington Dulles Airport 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 Saint Lucia

  • Morning departure is around 26% 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 airlines flying from Dulles Intl to Saint Lucia

Need help choosing which airline to fly with from Dulles Intl to Saint Lucia? 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
DeltaOverall score based on 10277 reviews
8.2Boarding
7.4Food
7.9Comfort
8.0Entertainment
8.6Crew
Airline reviews

3 hours late and all they have is was a $12 meal voucher. That’s not even enough to cover fast food.

2.0 MediocreCraig, Jun 2024CVG - LGA
Read more about Delta reviews

3 hours late and all they have is was a $12 meal voucher. That’s not even enough to cover fast food.

Among the poorest flights I’ve had with Delta in a while. Entertainment system failed completely on a 7.5 hr flight. Crew seemed distracted and not the normal friendly crew. Flight overbooked it seemed… very crowded.

If I can, I always fly Delta. I’ve found their service to always be reliable and pleasant.

You could have not cancelled the flight (AA, which I will be flying from now on) left for BOS despite the fictitious weather issues (that no one in my Boston family could see). You could have rebooked my direct flight to another direct flight instead of sending me though JFK, the worst US airport after O’Hara You could have rebooked me on a Main Cabin seat (like the one I paid for in my original ticket instead of putting me a the last row on JFK->BOS leg, pocketing the difference in ticket price But I do not really care whether you will ever do that in a future because in a future neither I nor anyone from my company (unless they pay out of pocket) nor an of my clients and partners (if they heed my advice) will ever be caught dead on any of Delta flights

Really bad baggage handling. Had my Rimowa bag badly damaged at the latches.

It was pretty good I was worried with the short Layover that I might not catch my connection but the gate was there

It was good until there was a 3 hour delay because there was not any pilots to fly the plane.

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Friendly flight attendants. Comfort plus seats were very comfortable and had lots of leg room. 10A and 10 B.

I've flown many many times on Northwest and then Delta. The crew on this flight were absolutely the best I've had the pleasure of being looked after by.

This is by far the worst experience I have had with American Airlines. The start of this trip was a complete disaster. I purposely planned my trip so that I would weather any delays so that I could make very important meeting at the Pentagon. My flight was cancelled because of maintenance and I was put on the first flight the next day but I was late to the meeting. After a long week at the Pentagon I just wanted to go home and my flight home which was early in the day was delayed. Eventually the flight was delayed until the next day. I was not authorized a hotel room because DCA was my point of origin. So I paid for a hotel out of pocket. The flight this morning was boarded then deplaned because the aircraft was hot. The flow of information was not happening in DCA and made it worse when the news was bad. I am going to take a break from American for my next few military flights. Hopefully whatever has been going on with American Airlines will be resolved.

AA1537 the AC was not working properly. It was very hot and uncomfortable.

Overall the flights pretty good. The snacks we’re good and they were plenty of them. Both boarding and deplaning went quickly.

Delayed abs delayed Gate crew giving poor info - we are definitely leaving at —- Ultimately to cancel flight after 4+ hours of delays Just cancel it earlier

The flight was scheduled to depart DCA at 12:30 pm but was delayed twice on the ground so that we were finally scheduled to depart at around 4:00 pm. Once we boarded, it was announced that takeoff would be delayed again to fix a hydraulic problem which delayed our eventual takeoff until around 5:00 pm. Once we departed, it was a smooth flight back to ORD. We did not get any explanation about what caused the original significant delay. In my experience, this happens frequently with AA.

Lots of weather delays that were poorly communicated and managed. I get there are weather delays but they didn’t make it clear what was happening or comfortable on the plane

Everything was on time; the flight attendants and the gate personnel were very pleasant and helpful.

Our second leg to Jackson WY was unable to land due to weather. We were flown back to Dallas after stopping in SLC. We were given hotel rooms and vouchers. We were told that we would be back on the same plane in the morning. Instead we were given a different flight with different seats. Not a good experience. No one knew what was going on.

Perfect flight. On time departure and early arrival. Smooth flight.

Awful! The flight was delayed and we sat on the plane in DCA for an hour because fuel was out in the wrong part of the plane and would not be accessible during flight. So the plane had to be refueled in correct tank. They also allowed someone to get off of the plane. This delayed my six hour flight by an hour and made me miss my connecting flight. I ran to new gate and American Airlines agents new about the delay and even knew that I was trying to make the connection. They knew thru communication with my friend while in flight that I was in the airport and running to the new gate and they still closed the gate and refused to let me on the new flight despite plane still being at the gate. It was horrible and I had to be rebooked on a flight for 24 hours later. This has been a nightmare and if American Airlines can cause customers to be delayed and then have zero empathy as having an on time flight was more important to them than helping a customer who was delayed by no fault of her own, then it's seems that it's not a company that I want to continue to give my loyalty to. I'm so disgusted.

Book cheap flights from Washington, D.C. to Saint Lucia

Recent round-trip flight deals

9/10Tue
1 stopAir Canada
22h 30mIAD-UVF
9/15Sun
1 stopAir Canada
23h 48mUVF-IAD
$387
9/10Tue
2 stopsAir Canada
16h 10mIAD-UVF
9/15Sun
1 stopAir Canada
23h 48mUVF-IAD
$388
9/10Tue
1 stopAir Canada
22h 30mIAD-UVF
9/15Sun
1 stopAir Canada
28h 48mUVF-IAD
$410
8/4Sun
1 stopDelta
8h 46mIAD-UVF
8/14Wed
1 stopDelta
18h 03mUVF-IAD
$536
8/3Sat
2 stopsAmerican Airlines
16h 25mIAD-UVF
8/8Thu
1 stopAmerican Airlines
8h 33mUVF-IAD
$540
8/5Mon
1 stopDelta
19h 35mIAD-UVF
8/14Wed
1 stopDelta
18h 03mUVF-IAD
$543
9/19Thu
2 stopsAmerican Airlines
17h 42mIAD-UVF
9/25Wed
2 stopsAmerican Airlines
17h 46mUVF-IAD
$565
7/13Sat
2 stops
21h 05mIAD-UVF
7/18Thu
1 stop
17h 13mUVF-IAD
$603
7/13Sat
2 stops
21h 05mIAD-UVF
7/18Thu
2 stops
26h 53mUVF-IAD
$753
8/3Sat
1 stopUnited Airlines
7h 31mIAD-UVF
8/10Sat
1 stopUnited Airlines
8h 02mUVF-IAD
$881

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Recent one-way flight deals

6/23Sun
1 stopAmerican Airlines
9h 30mIAD-UVF
$328
6/23Sun
2 stopsAmerican Airlines
26h 57mIAD-UVF
$460

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Last minute flights from Dulles Intl to Saint Lucia

Last minute flight, train and bus deals

6/16Sun
multi-stopAir Canada
8h 00mIAD-UVF
6/23Sun
multi-stopAir Canada
28h 49mUVF-IAD
$435
6/15Sat
multi-stopAir Canada
22h 30mIAD-UVF
6/23Sun
multi-stopAir Canada
28h 49mUVF-IAD
$444
6/15Sat
multi-stopAir Canada
22h 30mIAD-UVF
6/23Sun
multi-stopAir Canada
33h 17mUVF-IAD
$543
6/16Sun
multi-stopAir Canada
8h 00mIAD-UVF
6/23Sun
multi-stopAir Canada
29h 41mUVF-IAD
$583
6/13Thu
multi-stopAmerican Airlines
9h 30mIAD-UVF
6/18Tue
multi-stopAmerican Airlines
17h 18mUVF-IAD
$916
6/13Thu
multi-stopAmerican Airlines
9h 30mIAD-UVF
6/18Tue
multi-stopAmerican Airlines
19h 33mUVF-IAD
$920
6/15Sat
multi-stopAir Canada
28h 35mIAD-UVF
6/23Sun
multi-stopAir Canada
29h 41mUVF-IAD
$950
6/15Sat
multi-stopAmerican Airlines
16h 10mIAD-UVF
6/22Sat
multi-stopAmerican Airlines
8h 19mUVF-IAD
$960
6/15Sat
multi-stopAmerican Airlines
18h 15mIAD-UVF
6/22Sat
multi-stopAmerican Airlines
8h 19mUVF-IAD
$964
6/15Sat
multi-stop
27h 00mIAD-SLU
6/22Sat
multi-stop
26h 06mSLU-IAD
$1,502

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Washington Dulles Airport - Saint Lucia Flights

Departure:

Washington Dulles Airport (IAD)United States

Cabin classes: