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Find cheap flights from Washington Dulles Airport to Saint Lucia from $238

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 8/2. 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
Wed 6/5
Wed 6/12

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Good to know

Low season

September

High season

April

Cheapest flight

$238
Best time to beat the crowds but there is an average 26% increase in price.
Most popular time to fly and prices are also 26% 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 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 10826 reviews
8.2Boarding
7.9Comfort
8.6Crew
8.0Entertainment
7.4Food
Airline reviews

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!

8.0 ExcellentCynthia, May 2024ATL - TYS
Read more about Delta reviews

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.

Big plane, long flight, absolutely no leg room and basically non existent air! I am 5”4’ and always travel Main Cabin, I was miserable on this plane and could barely move when we arrived in Cabo due to the cramped leg area!

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.

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.

Help was available but timing was bad in my case

It was a horrible snow storm, but updates were inconsistent and the app never displayed a remotely accurate time or gate until very close to boarding.

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

Recent round-trip flight deals

7/15Mon
1 stopAmerican Airlines
9h 32mIAD-UVF
7/22Mon
1 stopAmerican Airlines
17h 19mUVF-IAD
$558
7/18Thu
1 stopDelta
8h 20mIAD-UVF
7/24Wed
1 stopDelta
8h 19mUVF-IAD
$561
7/1Mon
1 stopDelta
19h 25mIAD-UVF
7/8Mon
1 stopDelta
17h 39mUVF-IAD
$568
6/1Sat
2 stopsAir Canada
28h 35mIAD-UVF
6/9Sun
2 stopsAir Canada
29h 41mUVF-IAD
$586
7/19Fri
2 stopsAmerican Airlines
16h 25mIAD-UVF
7/22Mon
1 stopAmerican Airlines
17h 19mUVF-IAD
$587
7/3Wed
1 stopAir Canada
8h 00mIAD-UVF
7/7Sun
2 stopsAir Canada
28h 59mUVF-IAD
$595
7/24Wed
2 stopsWestJet
31h 38mIAD-UVF
7/28Sun
2 stopsWestJet
27h 11mUVF-IAD
$2,079
7/3Wed
2 stopsWestJet
20h 28mIAD-UVF
7/7Sun
2 stopsWestJet
21h 21mUVF-IAD
$3,388
6/27Thu
2 stopsBritish Airways
42h 20mIAD-UVF
6/30Sun
2 stopsBritish Airways
22h 45mUVF-IAD
$8,322
6/27Thu
2 stopsBritish Airways
42h 20mIAD-UVF
6/30Sun
1 stopBritish Airways
24h 05mUVF-IAD
$8,352

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Recent one-way flight deals

8/2Fri
2 stopsAir Canada
40h 11mIAD-UVF
$238
8/2Fri
1 stopAmerican Airlines
9h 32mIAD-UVF
$281
6/15Sat
1 stopDelta
8h 45mIAD-UVF
$283
6/15Sat
2 stopsAmerican Airlines
18h 42mIAD-UVF
$316
6/13Thu
1 stopDelta
8h 45mIAD-UVF
$418
6/13Thu
2 stopsAmerican Airlines
26h 57mIAD-UVF
$726
6/15Sat
3 stops
29h 15mIAD-SLU
$802
6/14Fri
2 stops
32h 50mIAD-SLU
$826
6/15Sat
2 stops
46h 33mIAD-SLU
$1,274

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Last minute flights from Dulles Intl to Saint Lucia

Last minute flight, train and bus deals

5/9Thu
multi-stopDelta
7h 27mIAD-UVF
5/16Thu
multi-stopDelta
8h 08mUVF-IAD
$916
5/9Thu
multi-stopAmerican Airlines
29h 21mIAD-UVF
5/16Thu
multi-stopAmerican Airlines
20h 15mUVF-IAD
$1,026

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Washington Dulles Airport - Saint Lucia Flights

Departure:

Washington Dulles Airport (IAD)United States

Cabin classes: