$203+ Cheap flights from Dulles Intl (IAD) to Saint Lucia
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/13. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — UVF
Jun 30 — Jul 71
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Dulles Intl to Saint Lucia with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Dulles Intl to Saint Lucia
Cheapest
Best
Last-minute
One-way
Cheapest flights from Dulles Intl to Saint LuciaExplore the most affordable flight options available from Dulles Intl to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 31, 2026.
Explore the most affordable flight options available from Dulles Intl to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 31, 2026.
This Air Canada deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1110:10 pm
IAD
- UVF
2 stops16h 00m
Air Canada
Tue 6/163:05 pm
UVF
- IAD
1 stop24h 24m
Air Canada
Deal found 5/26![Air Canada logo]()
$390
This Air Canada deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1110:10 pm
IAD
- UVF
2 stops16h 00m
Air Canada
Fri 6/193:15 pm
UVF
- IAD
1 stop24h 09m
Air Canada
Deal found 5/26![Air Canada logo]()
$399
This Air Canada deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1010:10 pm
IAD
- UVF
2 stops40h 00m
Air Canada
Fri 6/193:15 pm
UVF
- IAD
2 stops29h 58m
Air Canada
Deal found 5/26![Air Canada logo]()
$404
This Air Canada deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/1410:10 pm
IAD
- UVF
2 stops40h 00m
Air Canada
Fri 6/193:15 pm
UVF
- IAD
2 stops16h 29m
Air Canada
Deal found 5/30![Air Canada logo]()
$408
This FlightHub deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/155:15 pm
IAD
- UVF
1 stop20h 55m
Air Canada
Fri 6/193:15 pm
UVF
- IAD
1 stop24h 09m
Air Canada
Deal found 5/29![Air Canada logo]()
$429
This Justfly.com deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2710:10 pm
IAD
- UVF
2 stops39h 55m
Air Canada
Tue 6/23:05 pm
UVF
- IAD
1 stop24h 24m
Air Canada
Deal found 5/27![Air Canada logo]()
$458
This Air Canada deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/244:20 pm
IAD
- UVF
1 stop22h 00m
Air Canada
Fri 8/283:15 pm
UVF
- IAD
1 stop24h 09m
Air Canada
Deal found 5/29![Air Canada logo]()
$480
This Air Canada deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/218:18 am
IAD
- UVF
2 stops54h 02m
Air Canada
Tue 6/303:15 pm
UVF
- IAD
2 stops25h 20m
Air Canada
Deal found 5/27![Air Canada logo]()
$483
This Air Canada deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/234:20 pm
IAD
- UVF
1 stop21h 50m
Air Canada
Tue 7/283:05 pm
UVF
- IAD
1 stop24h 19m
Air Canada
Deal found 5/29![Air Canada logo]()
$500
This Expedia deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/74:05 pm
IAD
- SLU
2 stops26h 55m
Multiple Airlines
Sat 6/1312:35 pm
SLU
- IAD
2 stops26h 54m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$918
This Mytrip deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/55:06 pm
IAD
- SLU
3 stops25h 54m
Multiple Airlines
Fri 6/126:00 pm
SLU
- IAD
2 stops21h 29m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$1,008
This Mytrip deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/64:05 pm
IAD
- SLU
2 stops26h 55m
Multiple Airlines
Fri 6/126:00 pm
SLU
- IAD
3 stops21h 03m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$1,037
Best flights from Dulles Intl to Saint LuciaDiscover carefully curated flight deals from Dulles Intl to Saint Lucia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 31, 2026.
Discover carefully curated flight deals from Dulles Intl to Saint Lucia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 31, 2026.
This Delta deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:00 am
IAD
- UVF
1 stop8h 14m
Delta
Tue 9/13:34 pm
UVF
- IAD
1 stop9h 00m
Delta
Deal found 5/30![Delta logo]()
$626
This Gotogate deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/74:00 pm
IAD
- SLU
2 stops27h 00m
Multiple Airlines
Tue 10/1312:35 pm
SLU
- IAD
2 stops26h 50m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$1,068
This Delta deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:00 am
IAD
- UVF
1 stop8h 14m
Delta
Mon 9/143:33 pm
UVF
- IAD
1 stop17h 37m
Delta
Deal found 5/26![Delta logo]()
$771
This Delta deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:00 am
IAD
- UVF
1 stop8h 14m
Delta
Wed 8/263:34 pm
UVF
- IAD
1 stop9h 00m
Delta
Deal found 5/28![Delta logo]()
$777
This Delta deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:00 am
IAD
- UVF
1 stop8h 14m
Delta
Sun 8/303:34 pm
UVF
- IAD
1 stop9h 00m
Delta
Deal found 5/29![Delta logo]()
$806
This Gotogate deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/184:00 pm
IAD
- SLU
2 stops27h 00m
Multiple Airlines
Mon 9/2812:35 pm
SLU
- IAD
2 stops26h 50m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$1,074
This Delta deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:00 am
IAD
- UVF
1 stop8h 14m
Delta
Tue 9/83:33 pm
UVF
- IAD
1 stop17h 37m
Delta
Deal found 5/26![Delta logo]()
$846
This Gotogate deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/154:20 pm
IAD
- SLU
2 stops26h 40m
Multiple Airlines
Sun 8/2312:35 pm
SLU
- IAD
2 stops26h 49m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$1,131
This Delta deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:00 am
IAD
- UVF
1 stop8h 08m
Delta
Wed 9/303:33 pm
UVF
- IAD
1 stop8h 59m
Delta
Deal found 5/28![Delta logo]()
$881
This Delta deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/166:00 am
IAD
- UVF
1 stop8h 13m
Delta
Wed 7/83:33 pm
UVF
- IAD
1 stop9h 08m
Delta
Deal found 5/30![Delta logo]()
$892
This Mytrip deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/235:15 pm
IAD
- SLU
2 stops25h 45m
Multiple Airlines
Tue 7/289:10 am
SLU
- IAD
2 stops30h 14m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$1,194
This Delta deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:00 am
IAD
- UVF
1 stop8h 08m
Delta
Tue 9/293:33 pm
UVF
- IAD
1 stop8h 59m
Delta
Deal found 5/29![Delta logo]()
$997
This Expedia deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/129:55 am
IAD
- SLU
2 stops33h 05m
Multiple Airlines
Mon 6/1512:35 pm
SLU
- IAD
2 stops26h 54m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$1,358
This Mytrip deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1710:14 pm
IAD
- SLU
2 stops20h 46m
Multiple Airlines
Mon 6/229:10 am
SLU
- IAD
3 stops29h 51m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$1,381
This Mytrip deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/114:00 pm
IAD
- SLU
3 stops20h 05m
Multiple Airlines
Wed 9/1610:15 am
SLU
- IAD
3 stops28h 45m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$1,422
This Mytrip deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/125:15 pm
IAD
- SLU
2 stops19h 55m
Multiple Airlines
Tue 6/1611:45 am
SLU
- IAD
3 stops23h 27m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$1,433
This Mytrip deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/174:20 pm
IAD
- SLU
2 stops15h 50m
Multiple Airlines
Mon 8/2412:35 pm
SLU
- IAD
2 stops22h 10m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$1,474
Last-minute flights from Dulles Intl to Saint LuciaDiscover last-minute flight deals from Dulles Intl to Saint Lucia. Data last updated May 31, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to Saint Lucia. Data last updated May 31, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/55:06 pm
IAD
- SLU
3 stops25h 54m
Multiple Airlines
Fri 6/126:00 pm
SLU
- IAD
2 stops21h 29m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$1,008
This Mytrip deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/64:05 pm
IAD
- SLU
2 stops26h 55m
Multiple Airlines
Fri 6/126:00 pm
SLU
- IAD
3 stops21h 03m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$1,037
This Expedia deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/74:05 pm
IAD
- SLU
2 stops26h 55m
Multiple Airlines
Sat 6/1312:35 pm
SLU
- IAD
2 stops26h 54m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$918
This Air Canada deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1010:10 pm
IAD
- UVF
2 stops40h 00m
Air Canada
Fri 6/193:15 pm
UVF
- IAD
2 stops29h 58m
Air Canada
Deal found 5/26![Air Canada logo]()
$404
This Mytrip deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/108:18 am
IAD
- SLU
3 stops28h 52m
Multiple Airlines
Wed 6/1712:35 pm
SLU
- IAD
2 stops27h 57m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$1,090
This Air Canada deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1110:10 pm
IAD
- UVF
2 stops16h 00m
Air Canada
Tue 6/163:05 pm
UVF
- IAD
1 stop24h 24m
Air Canada
Deal found 5/26![Air Canada logo]()
$390
This Air Canada deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1110:10 pm
IAD
- UVF
2 stops16h 00m
Air Canada
Fri 6/193:15 pm
UVF
- IAD
1 stop24h 09m
Air Canada
Deal found 5/26![Air Canada logo]()
$399
This Air Canada deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/1410:10 pm
IAD
- UVF
2 stops40h 00m
Air Canada
Fri 6/193:15 pm
UVF
- IAD
2 stops16h 29m
Air Canada
Deal found 5/30![Air Canada logo]()
$408
This FlightHub deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/155:15 pm
IAD
- UVF
1 stop20h 55m
Air Canada
Fri 6/193:15 pm
UVF
- IAD
1 stop24h 09m
Air Canada
Deal found 5/29![Air Canada logo]()
$429
This Mytrip deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/2010:14 pm
IAD
- UVF
1 stop15h 26m
Multiple Airlines
Tue 6/233:15 pm
UVF
- IAD
1 stop24h 09m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$573
This Air Canada deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/218:18 am
IAD
- UVF
2 stops54h 02m
Air Canada
Tue 6/303:15 pm
UVF
- IAD
2 stops25h 20m
Air Canada
Deal found 5/27![Air Canada logo]()
$483
This Gotogate deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/289:55 am
IAD
- SLU
2 stops33h 05m
Multiple Airlines
Sun 7/53:45 pm
SLU
- IAD
2 stops47h 39m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$1,150
One-way flights from Dulles Intl to Saint LuciaSearch for one-way flight options from Dulles Intl to Saint Lucia. Find affordable one-way fares based on user searches. Data last updated May 31, 2026.
Search for one-way flight options from Dulles Intl to Saint Lucia. Find affordable one-way fares based on user searches. Data last updated May 31, 2026.
This Air Canada deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/134:20 pm
IAD
- UVF
1 stop21h 50m
Air Canada
Deal found 5/29![Air Canada logo]()
$203
This Expedia deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/174:20 pm
IAD
- UVF
1 stop22h 00m
Air Canada
Deal found 5/26![Air Canada logo]()
$204
This Travelocity deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/64:20 pm
IAD
- UVF
1 stop22h 00m
Air Canada
Deal found 5/26![Air Canada logo]()
$228
This Booking.com deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/910:10 pm
IAD
- UVF
2 stops16h 00m
Air Canada
Deal found 5/29![Air Canada logo]()
$234
This FlightHub deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/512:35 pm
IAD
- UVF
2 stops49h 45m
Air Canada
Deal found 5/26![Air Canada logo]()
$270
This American Airlines deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/18:21 pm
IAD
- UVF
2 stops17h 29m
American Airlines
Deal found 5/30![American Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1710:20 pm
IAD
- UVF
1 stop17h 11m
United Airlines
Deal found 5/30![United Airlines logo]()
$334
This American Airlines deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/58:22 pm
IAD
- UVF
1 stop17h 58m
American Airlines
Deal found 5/26![American Airlines logo]()
$369
This Air Canada deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/164:20 pm
IAD
- UVF
1 stop22h 00m
Air Canada
Deal found 5/26![Air Canada logo]()
$390
This Kiwi.com deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/178:33 pm
IAD
- SLU
3 stops36h 57m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$559
Find flight deals from Dulles Intl to Saint Lucia
Keep the following information in mind while searching for Dulles Intl to Saint Lucia flight deals. Data was last updated May 31, 2026.
Round-trip from | $390 (Air Canada) |
|---|---|
One-way from | $203 (Air Canada) |
Popular in | November |
Cheapest in | December |
Average price | $905 |
Cheapflights Fare Finder
Customize your flight search to find flights from Dulles Intl to Saint Lucia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 31, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Saint Lucia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Washington, D.C.Castries
IAD - UVF
IADUVF
Washington, D.C. Dulles Intl
Wed 8/26
6:00 am-2:14 pm
1 stop8h 14m
Castries Hewanorra
Tue 9/1
3:34 pm-12:34 am
1 stop9h 00m
$626
Washington, D.C.Castries
IAD - UVF
IADUVF
Washington, D.C. Dulles Intl
Sun 9/6
6:00 am-2:14 pm
1 stop8h 14m
Castries Hewanorra
Mon 9/14
3:33 pm-9:10 am
1 stop17h 37m
$771
Washington, D.C.Castries
IAD - UVF
IADUVF
Washington, D.C. Dulles Intl
Mon 8/17
6:00 am-2:14 pm
1 stop8h 14m
Castries Hewanorra
Wed 8/26
3:34 pm-12:34 am
1 stop9h 00m
$777
Washington, D.C.Castries
IAD - UVF
IADUVF
Washington, D.C. Dulles Intl
Fri 8/21
6:00 am-2:14 pm
1 stop8h 14m
Castries Hewanorra
Sun 8/30
3:34 pm-12:34 am
1 stop9h 00m
$806
Washington, D.C.Castries
IAD - UVF
IADUVF
Washington, D.C. Dulles Intl
Wed 9/2
6:00 am-2:14 pm
1 stop8h 14m
Castries Hewanorra
Tue 9/8
3:33 pm-9:10 am
1 stop17h 37m
$846
Quickest round-trip
Washington, D.C.Castries
IAD - UVF
IADUVF
Washington, D.C. Dulles Intl
Sat 9/26
6:00 am-2:08 pm
1 stop8h 08m
Castries Hewanorra
Wed 9/30
3:33 pm-12:32 am
1 stop8h 59m
$881
Washington, D.C.Castries
IAD - UVF
IADUVF
Washington, D.C. Dulles Intl
Tue 6/16
6:00 am-2:13 pm
1 stop8h 13m
Castries Hewanorra
Wed 7/8
3:33 pm-12:41 am
1 stop9h 08m
$892
Washington, D.C.Castries
IAD - UVF
IADUVF
Washington, D.C. Dulles Intl
Tue 9/22
6:00 am-2:08 pm
1 stop8h 08m
Castries Hewanorra
Tue 9/29
3:33 pm-12:32 am
1 stop8h 59m
$997
Washington, D.C.Castries
IAD - SLU
IADSLU
Washington, D.C. Dulles Intl
Wed 10/7
4:00 pm-7:00 pm
2 stops27h 00m
Castries George F. L. Charle
Tue 10/13
12:35 pm-3:25 pm
2 stops26h 50m
$1,068
Washington, D.C.Castries
IAD - SLU
IADSLU
Washington, D.C. Dulles Intl
Fri 9/18
4:00 pm-7:00 pm
2 stops27h 00m
Castries George F. L. Charle
Mon 9/28
12:35 pm-3:25 pm
2 stops26h 50m
$1,074
Showing 1-10 of 27 resultsSorted by cheapest first
Best time to book a flight from Dulles Intl to Saint Lucia
Have a flexible travel schedule? Discover the best time to fly to Saint Lucia from Dulles Intl with our price prediction graph.
IAD-UVF
IAD-SLU
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Saint Lucia
IAD-LC0
IAD-UVF
IAD-SLU
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Saint Lucia?
Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Saint Lucia (average of $342). Flying from Washington, D.C. Dulles Intl Airport to Saint Lucia in June is currently the most expensive (average of $837). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing Saint Lucia
Get insights into the airlines that provide service to Saint Lucia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Saint Lucia. Reviews last updated May 31, 2026.
Read reviews from past customers who have flown Delta and American Airlines from Washington, D.C. Dulles Intl Airport to Saint Lucia. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Boarding
8.1
Crew
8.5
Comfort
7.8
Entertainment
7.8
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Boarding
8.1
Crew
8.5
Comfort
7.8
Entertainment
7.8
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Boarding
8.1
Crew
8.5
Comfort
7.8
Entertainment
7.8
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Dulles Intl to Saint Lucia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Alternative routes for Dulles Intl to Saint Lucia
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Saint Lucia by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Dulles Intl to Saint Lucia by cabin class
Find flights from Dulles Intl to Saint Lucia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Dulles Intl and Saint Lucia flights
Browse other Dulles Intl and Saint Lucia flight options. Last updated on May 31, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Dulles Intl to Saint Lucia
Discover the top 2 airlines that operate flights from Dulles Intl to Saint Lucia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 31, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$351 | Average$781 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$452 | Average$986 | FlexibilityNo cancel fee | On-timeN/A |