$247+ Cheap flights from Dulles Intl (IAD) to Saint Lucia
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — UVF
Oct 10 — Oct 171
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 September 10, 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 September 10, 2026.
This Air Canada deal was found by Cheapflights users on 9/7. 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.
Sat 12/54:30 pm -
1 stop23h 10m
Thu 12/105:40 pm -
1 stop23h 05m
Deal found 9/7![Air Canada logo]()
$412
This Travelocity deal was found by Cheapflights users on 9/6. 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.
Wed 12/99:55 am -
2 stops29h 45m
Sun 12/135:40 pm -
1 stop27h 30m
Deal found 9/6![Air Canada logo]()
$416
This Justfly.com deal was found by Cheapflights users on 9/7. 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.
Sun 11/224:30 pm -
1 stop23h 10m
Thu 11/265:40 pm -
1 stop27h 30m
Deal found 9/7![Air Canada logo]()
$420
This Justfly.com deal was found by Cheapflights users on 9/7. 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.
Tue 11/245:37 pm -
2 stops46h 03m
Wed 12/25:40 pm -
2 stops43h 08m
Deal found 9/7![Air Canada logo]()
$422
This Justfly.com deal was found by Cheapflights users on 9/5. 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.
Sun 11/84:30 pm -
1 stop23h 10m
Fri 11/135:40 pm -
1 stop23h 05m
Deal found 9/5![Air Canada logo]()
$431
This Justfly.com deal was found by Cheapflights users on 9/9. 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.
Sun 11/14:30 pm -
1 stop23h 10m
Fri 11/65:40 pm -
1 stop27h 30m
Deal found 9/9![Air Canada logo]()
$432
This Orbitz deal was found by Cheapflights users on 9/7. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/119:55 am -
2 stops29h 45m
Mon 11/165:40 pm -
2 stops23h 46m
Deal found 9/7![Air Canada logo]()
$438
This Gotogate deal was found by Cheapflights users on 9/7. 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 11/14:30 pm -
1 stop23h 10m
Mon 11/95:40 pm -
1 stop27h 30m
Deal found 9/7![Air Canada logo]()
$440
This Orbitz deal was found by Cheapflights users on 9/5. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/289:55 am -
2 stops33h 05m
Wed 11/412:35 pm -
2 stops28h 10m
Deal found 9/5![Multiple Airlines logo]()
$728
This Expedia deal was found by Cheapflights users on 9/6. 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 11/139:55 am -
2 stops32h 05m
Wed 11/1812:35 pm -
2 stops32h 35m
Deal found 9/6![Multiple Airlines logo]()
$729
This Justfly.com deal was found by Cheapflights users on 9/5. 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 10/144:00 pm -
2 stops27h 00m
Mon 10/193:45 pm -
2 stops46h 37m
Deal found 9/5![Multiple Airlines logo]()
$798
This Travelocity deal was found by Cheapflights users on 9/10. 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.
Sat 10/34:00 pm -
2 stops27h 00m
Thu 10/812:35 pm -
2 stops26h 50m
Deal found 9/10![Multiple Airlines logo]()
$818
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 September 10, 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 September 10, 2026.
This Air Canada deal was found by Cheapflights users on 9/9. 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 3/44:30 pm -
1 stop23h 15m
Mon 3/85:45 pm -
1 stop22h 58m
Deal found 9/9![Air Canada logo]()
$647
This Delta deal was found by Cheapflights users on 9/7. 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.
Thu 11/126:00 am -
1 stop8h 05m
Tue 11/174:25 pm -
1 stop9h 16m
Deal found 9/7![Delta logo]()
$688
This Expedia deal was found by Cheapflights users on 9/6. 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 11/139:55 am -
2 stops32h 05m
Wed 11/1812:35 pm -
2 stops32h 35m
Deal found 9/6![Multiple Airlines logo]()
$729
This Delta deal was found by Cheapflights users on 9/9. 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 1/116:40 am -
1 stop7h 25m
Fri 1/154:25 pm -
1 stop8h 55m
Deal found 9/9![Delta logo]()
$688
This Delta deal was found by Cheapflights users on 9/8. 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 1/116:40 am -
1 stop7h 25m
Sun 1/174:25 pm -
1 stop17h 46m
Deal found 9/8![Delta logo]()
$688
This FlightHub deal was found by Cheapflights users on 9/5. 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.
Tue 1/124:30 pm -
2 stops25h 30m
Tue 1/1912:35 pm -
2 stops28h 10m
Deal found 9/5![Multiple Airlines logo]()
$766
This Justfly.com deal was found by Cheapflights users on 9/5. 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 10/144:00 pm -
2 stops27h 00m
Mon 10/193:45 pm -
2 stops46h 37m
Deal found 9/5![Multiple Airlines logo]()
$798
This Delta deal was found by Cheapflights users on 9/5. 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 -
1 stop8h 12m
Tue 9/293:32 pm -
1 stop9h 09m
Deal found 9/5![Delta logo]()
$753
This Delta deal was found by Cheapflights users on 9/9. 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 10/206:00 am -
1 stop8h 12m
Tue 10/273:32 pm -
1 stop9h 10m
Deal found 9/9![Delta logo]()
$772
This Delta deal was found by Cheapflights users on 9/5. 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 1/297:00 am -
1 stop7h 05m
Sun 1/314:25 pm -
1 stop8h 55m
Deal found 9/5![Delta logo]()
$807
This Air Canada deal was found by Cheapflights users on 9/8. 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 11/114:30 pm -
2 stops25h 30m
Tue 11/1712:35 pm -
2 stops24h 10m
Deal found 9/8![Multiple Airlines logo]()
$1,078
This Delta deal was found by Cheapflights users on 9/9. 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 1/166:40 am -
1 stop7h 25m
Sat 1/234:25 pm -
1 stop17h 46m
Deal found 9/9![Delta logo]()
$864
This Mytrip deal was found by Cheapflights users on 9/9. 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.
Sun 12/64:30 pm -
3 stops25h 30m
Fri 12/116:45 pm -
2 stops22h 00m
Deal found 9/9![Multiple Airlines logo]()
$1,087
This Delta deal was found by Cheapflights users on 9/9. 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.
Thu 11/126:00 am -
1 stop8h 05m
Sat 11/214:25 pm -
1 stop9h 16m
Deal found 9/9![Delta logo]()
$864
This Air Canada deal was found by Cheapflights users on 9/5. 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.
Fri 10/94:00 pm -
2 stops27h 00m
Tue 10/1312:35 pm -
2 stops25h 47m
Deal found 9/5![Multiple Airlines logo]()
$1,095
This Delta deal was found by Cheapflights users on 9/9. 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.
Thu 10/228:13 am -
1 stop29h 59m
Wed 10/283:32 pm -
1 stop17h 47m
Deal found 9/9![Delta logo]()
$901
This Delta deal was found by Cheapflights users on 9/5. 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 12/287:45 pm -
1 stop18h 30m
Thu 12/314:40 pm -
1 stop18h 08m
Deal found 9/5![Delta logo]()
$901
This Air Canada deal was found by Cheapflights users on 9/6. 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 11/254:30 pm -
2 stops25h 30m
Tue 12/112:35 pm -
2 stops23h 50m
Deal found 9/6![Multiple Airlines logo]()
$1,227
This Expedia deal was found by Cheapflights users on 9/5. 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 10/94:00 pm -
2 stops27h 00m
Mon 10/1212:35 pm -
2 stops31h 50m
Deal found 9/5![Multiple Airlines logo]()
$1,303
This Delta deal was found by Cheapflights users on 9/9. 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 10/218:13 am -
1 stop29h 59m
Wed 10/283:32 pm -
1 stop9h 10m
Deal found 9/9![Delta logo]()
$986
This Mytrip deal was found by Cheapflights users on 9/10. 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 10/34:00 pm -
3 stops20h 05m
Thu 10/812:35 pm -
3 stops23h 09m
Deal found 9/10![Multiple Airlines logo]()
$1,350
Last-minute flights from Dulles Intl to Saint LuciaDiscover last-minute flight deals from Dulles Intl to Saint Lucia. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to Saint Lucia. Data last updated September 10, 2026 and is based on user searches.
This Travelocity deal was found by Cheapflights users on 9/10. 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.
Sat 10/34:00 pm -
2 stops27h 00m
Thu 10/812:35 pm -
2 stops26h 50m
Deal found 9/10![Multiple Airlines logo]()
$818
This American Airlines deal was found by Cheapflights users on 9/7. 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 10/47:10 pm -
2 stops19h 54m
Sun 10/184:04 pm -
2 stops26h 41m
Deal found 9/7![American Airlines logo]()
$651
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 10/89:15 am -
1 stop29h 05m
Tue 10/134:04 pm -
2 stops20h 47m
Deal found 9/9![American Airlines logo]()
$606
This American Airlines deal was found by Cheapflights users on 9/6. 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 10/115:01 am -
1 stop9h 19m
Wed 10/144:04 pm -
2 stops16h 40m
Deal found 9/6![American Airlines logo]()
$621
This Justfly.com deal was found by Cheapflights users on 9/5. 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 10/144:00 pm -
2 stops27h 00m
Mon 10/193:45 pm -
2 stops46h 37m
Deal found 9/5![Multiple Airlines logo]()
$798
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Wed 10/217:15 pm -
2 stops19h 49m
Tue 10/272:42 pm -
2 stops22h 09m
Deal found 9/9![American Airlines logo]()
$604
This Air Canada deal was found by Cheapflights users on 9/8. 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 10/225:20 pm -
1 stop20h 55m
Sun 10/254:40 pm -
2 stops23h 13m
Deal found 9/8![Air Canada logo]()
$553
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Sat 10/2411:25 am -
1 stop26h 30m
Thu 10/292:55 pm -
1 stop19h 43m
Deal found 9/8![Multiple Airlines logo]()
$483
This American Airlines deal was found by Cheapflights users on 9/7. 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 10/256:15 am -
1 stop8h 05m
Fri 10/303:20 pm -
1 stop8h 38m
Deal found 9/7![American Airlines logo]()
$616
This American Airlines deal was found by Cheapflights users on 9/5. 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.
Wed 10/285:01 am -
2 stops10h 03m
Wed 11/42:32 pm -
2 stops19h 31m
Deal found 9/5![American Airlines logo]()
$656
This Orbitz deal was found by Cheapflights users on 9/5. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/289:55 am -
2 stops33h 05m
Wed 11/412:35 pm -
2 stops28h 10m
Deal found 9/5![Multiple Airlines logo]()
$728
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 10/296:15 am -
1 stop8h 05m
Tue 11/34:07 pm -
1 stop7h 52m
Deal found 9/10![American Airlines logo]()
$594
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 September 10, 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 September 10, 2026.
This American Airlines deal was found by Cheapflights users on 9/8. 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.
Thu 11/55:44 pm -
2 stops18h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![American Airlines logo]()
$247
This Expedia deal was found by Cheapflights users on 9/6. 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.
Thu 2/49:55 am -
1 stop29h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Air Canada logo]()
$265
This Air Canada deal was found by Cheapflights users on 9/9. 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 2/259:55 am -
1 stop29h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Air Canada logo]()
$270
This Delta deal was found by Cheapflights users on 9/5. 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 1/297:50 pm -
1 stop18h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Delta logo]()
$294
This American Airlines deal was found by Cheapflights users on 9/5. 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.
Fri 1/297:15 pm -
2 stops18h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![American Airlines logo]()
$350
This Kiwi.com deal was found by Cheapflights users on 9/7. 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.
Fri 12/259:14 pm -
2 stops23h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$572
This United Airlines deal was found by Cheapflights users on 9/7. 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 12/256:05 am -
1 stop7h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![United Airlines logo]()
$779
This Expedia deal was found by Cheapflights users on 9/6. 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.
Tue 2/169:55 am -
2 stops22h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$825
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Wed 1/275:50 am -
3 stops28h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$914
This WestJet deal was found by Cheapflights users on 9/7. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2510:43 am -
2 stops27h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![WestJet logo]()
$1,745
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 September 10, 2026.
Round-trip from | $412 (Air Canada) |
|---|---|
One-way from | $247 (American Airlines) |
Popular in | November |
Cheapest in | December |
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 7,457,451 searches. Data last updated September 10, 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 Washington, D.C. Dulles Intl - UVF Castries Hewanorra
IADUVF
Washington, D.C. Dulles Intl
Thu 11/5
5:44 pm-1:30 pm
2 stops18h 46m
Castries Hewanorra
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$247
Washington, D.C.Castries
IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra
IADUVF
Washington, D.C. Dulles Intl
Tue 2/16
4:30 pm-4:40 pm
1 stop23h 10m
Castries Hewanorra
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$265
Washington, D.C.Castries
IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra
IADUVF
Washington, D.C. Dulles Intl
Thu 2/25
1:25 pm-4:40 pm
2 stops26h 15m
Castries Hewanorra
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$270
Washington, D.C.Castries
IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra
IADUVF
Washington, D.C. Dulles Intl
Wed 1/27
1:20 pm-4:40 pm
2 stops26h 20m
Castries Hewanorra
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$270
Washington, D.C.Castries
IAD Washington, D.C. Dulles Intl - SLU Castries George F. L. Charle
IADSLU
Washington, D.C. Dulles Intl
Fri 12/25
9:14 pm-10:10 pm
2 stops23h 56m
Castries George F. L. Charle
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$572
Washington, D.C.Castries
IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra
IADUVF
Washington, D.C. Dulles Intl
Thu 3/4
4:30 pm-4:45 pm
1 stop23h 15m
Castries Hewanorra
Mon 3/8
5:45 pm-3:43 pm
1 stop22h 58m
$647
Washington, D.C.Castries
IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra
IADUVF
Washington, D.C. Dulles Intl
Thu 11/12
6:00 am-3:05 pm
1 stop8h 05m
Castries Hewanorra
Tue 11/17
4:25 pm-12:41 am
1 stop9h 16m
$688
Washington, D.C.Castries
IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra
IADUVF
Washington, D.C. Dulles Intl
Mon 1/11
6:40 am-3:05 pm
1 stop7h 25m
Castries Hewanorra
Fri 1/15
4:25 pm-12:20 am
1 stop8h 55m
$688
Washington, D.C.Castries
IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra
IADUVF
Washington, D.C. Dulles Intl
Mon 1/11
6:40 am-3:05 pm
1 stop7h 25m
Castries Hewanorra
Sun 1/17
4:25 pm-9:11 am
1 stop17h 46m
$688
Washington, D.C.Castries
IAD Washington, D.C. Dulles Intl - SLU Castries George F. L. Charle
IADSLU
Washington, D.C. Dulles Intl
Fri 11/13
9:55 am-7:00 pm
2 stops32h 05m
Castries George F. L. Charle
Wed 11/18
12:35 pm-8:10 pm
2 stops32h 35m
$729
Showing 1-10 of 28 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, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Saint Lucia (average of $463). Flying from Washington, D.C. Dulles Intl Airport to Saint Lucia in June is currently the most expensive (average of $1,475). 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 September 10, 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.
Overall
7.8
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Overall
7.8
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Overall
7.8
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
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 September 10, 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 7,457,451 searches. Data last updated September 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$351 | Average$751 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$452 | Average$920 | FlexibilityNo cancel fee | On-timeN/A |