$152+ 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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — UVF
Sep 24 — Oct 11
Round-trip
1 adult, Economy
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Find cheap flights from Dulles Intl to Saint Lucia with Cheapflights
1. Tell us where you want to go
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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 August 25, 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 August 25, 2026.
This Expedia deal was found by Cheapflights users on 8/22. 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 10/233:45 pm -
2 stops47h 55m
Fri 10/304:40 pm -
1 stop27h 30m
Deal found 8/22![Air Canada logo]()
$444
This Air Canada deal was found by Cheapflights users on 8/23. 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 10/2410:19 pm -
1 stop17h 21m
Mon 11/95:40 pm -
2 stops23h 13m
Deal found 8/23![Air Canada logo]()
$450
This Air Canada deal was found by Cheapflights users on 8/24. 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 11/84:30 pm -
1 stop23h 10m
Thu 11/125:40 pm -
1 stop23h 05m
Deal found 8/24![Air Canada logo]()
$451
This Air Canada deal was found by Cheapflights users on 8/20. 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 11/85:37 pm -
2 stops22h 03m
Fri 11/135:40 pm -
1 stop23h 05m
Deal found 8/20![Air Canada logo]()
$470
This Justfly.com deal was found by Cheapflights users on 8/20. 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 11/15:37 pm -
2 stops22h 03m
Sun 11/85:40 pm -
1 stop27h 30m
Deal found 8/20![Air Canada logo]()
$475
This Kiwi.com deal was found by Cheapflights users on 8/22. 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 11/136:25 pm -
1 stop19h 30m
Sat 11/213:50 pm -
1 stop19h 48m
Deal found 8/22![Multiple Airlines logo]()
$480
This Expedia deal was found by Cheapflights users on 8/22. 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.
Wed 11/114:30 pm -
1 stop23h 10m
Sun 11/155:40 pm -
2 stops27h 43m
Deal found 8/22![Air Canada logo]()
$488
This Expedia deal was found by Cheapflights users on 8/22. 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 10/189:55 am -
2 stops33h 05m
Tue 10/2012:35 pm -
2 stops25h 47m
Deal found 8/22![Multiple Airlines logo]()
$785
This Mytrip deal was found by Cheapflights users on 8/24. 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 11/135:15 pm -
3 stops24h 45m
Wed 11/189:10 am -
2 stops31h 35m
Deal found 8/24![Multiple Airlines logo]()
$888
This Expedia deal was found by Cheapflights users on 8/22. 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 9/114:00 pm -
2 stops27h 00m
Sun 9/2012:35 pm -
2 stops31h 50m
Deal found 8/22![Multiple Airlines logo]()
$889
This Mytrip deal was found by Cheapflights users on 8/24. 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 10/215:20 pm -
2 stops25h 40m
Sun 10/2512:35 pm -
3 stops27h 58m
Deal found 8/24![Multiple Airlines logo]()
$952
This Air Canada deal was found by Cheapflights users on 8/20. 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 10/164:00 pm -
2 stops27h 00m
Mon 10/1912:35 pm -
2 stops25h 47m
Deal found 8/20![Multiple Airlines logo]()
$960
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 August 25, 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 August 25, 2026.
This United Airlines deal was found by Cheapflights users on 8/20. 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 10/910:40 pm -
1 stop14h 51m
Sat 10/242:35 pm -
1 stop8h 24m
Deal found 8/20![United Airlines logo]()
$662
This Delta deal was found by Cheapflights users on 8/22. 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 11/167:37 pm -
1 stop18h 28m
Wed 11/254:25 pm -
1 stop18h 30m
Deal found 8/22![Delta logo]()
$688
This American Airlines deal was found by Cheapflights users on 8/24. 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 10/112:30 pm -
2 stops25h 32m
Mon 10/53:20 pm -
1 stop8h 38m
Deal found 8/24![American Airlines logo]()
$711
This Mytrip deal was found by Cheapflights users on 8/24. 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 11/135:15 pm -
3 stops24h 45m
Wed 11/189:10 am -
2 stops31h 35m
Deal found 8/24![Multiple Airlines logo]()
$888
This Delta deal was found by Cheapflights users on 8/20. 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 9/106:00 am -
1 stop8h 12m
Mon 9/143:32 pm -
1 stop9h 09m
Deal found 8/20![Delta logo]()
$688
This United Airlines deal was found by Cheapflights users on 8/21. 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 10/305:53 pm -
1 stop18h 14m
Sat 11/71:52 pm -
1 stop11h 38m
Deal found 8/21![United Airlines logo]()
$714
This Delta deal was found by Cheapflights users on 8/23. 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 10/296:00 am -
1 stop8h 12m
Tue 11/34:32 pm -
1 stop9h 10m
Deal found 8/23![Delta logo]()
$688
This Delta deal was found by Cheapflights users on 8/22. 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 11/176:00 am -
1 stop8h 05m
Tue 11/244:25 pm -
1 stop17h 44m
Deal found 8/22![Delta logo]()
$688
This Delta deal was found by Cheapflights users on 8/20. 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 8/20![Delta logo]()
$688
This Mytrip deal was found by Cheapflights users on 8/24. 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 11/254:30 pm -
3 stops25h 30m
Sun 11/2912:35 pm -
2 stops28h 58m
Deal found 8/24![Multiple Airlines logo]()
$952
This Delta deal was found by Cheapflights users on 8/20. 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 9/106:00 am -
1 stop8h 12m
Thu 9/173:32 pm -
1 stop9h 09m
Deal found 8/20![Delta logo]()
$688
This Air Canada deal was found by Cheapflights users on 8/20. 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 10/164:00 pm -
2 stops27h 00m
Mon 10/1912:35 pm -
2 stops25h 47m
Deal found 8/20![Multiple Airlines logo]()
$960
This Mytrip deal was found by Cheapflights users on 8/20. 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 11/205:15 pm -
3 stops24h 45m
Wed 11/2512:35 pm -
2 stops28h 10m
Deal found 8/20![Multiple Airlines logo]()
$963
This Delta deal was found by Cheapflights users on 8/20. 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 10m
Tue 11/174:25 pm -
1 stop9h 14m
Deal found 8/20![Delta logo]()
$807
This Mytrip deal was found by Cheapflights users on 8/23. 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 9/219:45 am -
3 stops22h 25m
Mon 9/289:10 am -
3 stops29h 50m
Deal found 8/23![Multiple Airlines logo]()
$1,080
This Mytrip deal was found by Cheapflights users on 8/23. 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 10/219:55 am -
3 stops29h 20m
Sun 10/2512:35 pm -
3 stops27h 58m
Deal found 8/23![Multiple Airlines logo]()
$1,135
This Travelocity deal was found by Cheapflights users on 8/20. 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.
Fri 10/94:00 pm -
2 stops27h 00m
Sat 10/243:45 pm -
2 stops52h 38m
Deal found 8/20![Multiple Airlines logo]()
$1,240
Last-minute flights from Dulles Intl to Saint LuciaDiscover last-minute flight deals from Dulles Intl to Saint Lucia. Data last updated August 25, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to Saint Lucia. Data last updated August 25, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/23. 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 9/54:25 pm -
1 stop21h 15m
Sun 9/132:30 pm -
1 stop20h 15m
Deal found 8/23![Multiple Airlines logo]()
$741
This Delta deal was found by Cheapflights users on 8/23. 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 -
1 stop8h 14m
Tue 9/153:32 pm -
1 stop17h 37m
Deal found 8/23![Delta logo]()
$763
This American Airlines deal was found by Cheapflights users on 8/20. 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 9/1012:30 pm -
2 stops25h 32m
Mon 9/143:02 pm -
2 stops27h 57m
Deal found 8/20![American Airlines logo]()
$616
This Expedia deal was found by Cheapflights users on 8/22. 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 9/114:00 pm -
2 stops27h 00m
Sun 9/2012:35 pm -
2 stops31h 50m
Deal found 8/22![Multiple Airlines logo]()
$889
This United Airlines deal was found by Cheapflights users on 8/21. 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.
Sat 9/126:15 am -
1 stop7h 16m
Sat 9/192:35 pm -
1 stop16h 44m
Deal found 8/21![United Airlines logo]()
$714
This American Airlines deal was found by Cheapflights users on 8/21. 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.
Mon 9/146:15 pm -
2 stops19h 47m
Sun 3/143:18 pm -
1 stop8h 41m
Deal found 8/21![American Airlines logo]()
$757
This American Airlines deal was found by Cheapflights users on 8/24. 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 9/186:15 pm -
2 stops19h 47m
Wed 9/303:02 pm -
2 stops26h 29m
Deal found 8/24![American Airlines logo]()
$672
This United Airlines deal was found by Cheapflights users on 8/22. 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.
Sat 9/196:15 am -
1 stop7h 16m
Sat 9/262:35 pm -
1 stop8h 24m
Deal found 8/22![United Airlines logo]()
$633
This American Airlines deal was found by Cheapflights users on 8/20. 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 9/196:14 pm -
2 stops19h 48m
Sat 9/263:02 pm -
2 stops27h 13m
Deal found 8/20![American Airlines logo]()
$787
This American Airlines deal was found by Cheapflights users on 8/21. 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.
Tue 9/2210:25 am -
2 stops27h 37m
Tue 9/293:02 pm -
2 stops20h 54m
Deal found 8/21![American Airlines logo]()
$599
This Delta deal was found by Cheapflights users on 8/21. 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 8/21![Delta logo]()
$688
This American Airlines deal was found by Cheapflights users on 8/21. 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 9/275:01 am -
2 stops9h 01m
Sat 10/33:02 pm -
2 stops27h 13m
Deal found 8/21![American Airlines logo]()
$646
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 August 25, 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 August 25, 2026.
This Expedia deal was found by Cheapflights users on 8/24. 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 8/319:45 am -
2 stops28h 35m
Deal found 8/24![Air Canada logo]()
$152
This Air Canada deal was found by Cheapflights users on 8/23. 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 10/88:15 am -
2 stops30h 00m
Deal found 8/23![Air Canada logo]()
$173
This Justfly.com deal was found by Cheapflights users on 8/24. 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.
Thu 11/55:37 pm -
2 stops22h 03m
Deal found 8/24![Air Canada logo]()
$222
This Travelocity deal was found by Cheapflights users on 8/22. 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 10/143:45 pm -
2 stops46h 30m
Deal found 8/22![Air Canada logo]()
$232
This American Airlines deal was found by Cheapflights users on 8/23. 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.
Mon 10/55:01 am -
2 stops8h 41m
Deal found 8/23![American Airlines logo]()
$247
This American Airlines deal was found by Cheapflights users on 8/22. 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 10/147:15 pm -
1 stop19h 05m
Deal found 8/22![American Airlines logo]()
$265
This Delta deal was found by Cheapflights users on 8/23. 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 10/26:00 am -
1 stop8h 12m
Deal found 8/23![Delta logo]()
$294
This American Airlines deal was found by Cheapflights users on 8/23. 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.
Tue 10/66:25 pm -
2 stops19h 17m
Deal found 8/23![American Airlines logo]()
$307
This American Airlines deal was found by Cheapflights users on 8/23. 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 stops18h 32m
Deal found 8/23![American Airlines logo]()
$312
This Travelocity deal was found by Cheapflights users on 8/23. 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 10/59:55 am -
2 stops33h 05m
Deal found 8/23![Multiple Airlines logo]()
$321
This Justfly.com deal was found by Cheapflights users on 8/20. 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 9/23:45 pm -
2 stops46h 35m
Deal found 8/20![Air Canada logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 8/24. 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 8/318:39 pm -
3 stops46h 21m
Deal found 8/24![Multiple Airlines logo]()
$667
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 August 25, 2026.
Round-trip from | $444 (Expedia) |
|---|---|
One-way from | $152 (Expedia) |
Popular in | November |
Cheapest in | December |
Average price | $618 |
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 August 25, 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
Fri 10/9
10:40 pm-1:31 pm
1 stop14h 51m
Castries Hewanorra
Sat 10/24
2:35 pm-10:59 pm
1 stop8h 24m
$662
Washington, D.C.Castries
IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra
IADUVF
Washington, D.C. Dulles Intl
Mon 11/16
7:37 pm-3:05 pm
1 stop18h 28m
Castries Hewanorra
Wed 11/25
4:25 pm-9:55 am
1 stop18h 30m
$688
Quickest round-trip
Washington, D.C.Castries
IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra
IADUVF
Washington, D.C. Dulles Intl
Thu 9/10
6:00 am-2:12 pm
1 stop8h 12m
Castries Hewanorra
Mon 9/14
3:32 pm-12:41 am
1 stop9h 09m
$688
Washington, D.C.Castries
IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra
IADUVF
Washington, D.C. Dulles Intl
Thu 10/29
6:00 am-2:12 pm
1 stop8h 12m
Castries Hewanorra
Tue 11/3
4:32 pm-12:42 am
1 stop9h 10m
$688
Washington, D.C.Castries
IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra
IADUVF
Washington, D.C. Dulles Intl
Tue 11/17
6:00 am-3:05 pm
1 stop8h 05m
Castries Hewanorra
Tue 11/24
4:25 pm-9:09 am
1 stop17h 44m
$688
Washington, D.C.Castries
IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra
IADUVF
Washington, D.C. Dulles Intl
Tue 9/22
6:00 am-2:12 pm
1 stop8h 12m
Castries Hewanorra
Tue 9/29
3:32 pm-12:41 am
1 stop9h 09m
$688
Washington, D.C.Castries
IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra
IADUVF
Washington, D.C. Dulles Intl
Thu 9/10
6:00 am-2:12 pm
1 stop8h 12m
Castries Hewanorra
Thu 9/17
3:32 pm-12:41 am
1 stop9h 09m
$688
Washington, D.C.Castries
IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra
IADUVF
Washington, D.C. Dulles Intl
Thu 10/1
12:30 pm-2:02 pm
2 stops25h 32m
Castries Hewanorra
Mon 10/5
3:20 pm-11:58 pm
1 stop8h 38m
$711
Washington, D.C.Castries
IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra
IADUVF
Washington, D.C. Dulles Intl
Fri 10/30
5:53 pm-12:07 pm
1 stop18h 14m
Castries Hewanorra
Sat 11/7
1:52 pm-12:30 am
1 stop11h 38m
$714
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-3:10 pm
1 stop8h 10m
Castries Hewanorra
Tue 11/17
4:25 pm-12:39 am
1 stop9h 14m
$807
Showing 1-10 of 29 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 November is currently the most expensive (average of $1,585). 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 August 25, 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.
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Crew
8.5
Food
7.2
Overall
7.8
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Crew
8.5
Food
7.2
Overall
7.8
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Crew
8.5
Food
7.2
Overall
7.8
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.
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Alternative routes for Dulles Intl to Saint Lucia
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Complete your trip
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Search flights from Dulles Intl to Saint Lucia by cabin class
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Dulles Intl and Saint Lucia flights
Browse other Dulles Intl and Saint Lucia flight options. Last updated on August 25, 2026.
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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 August 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$351 | Average$751 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$452 | Average$1,041 | FlexibilityNo cancel fee | On-timeN/A |