$154+ 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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — UVF
Sep 12 — Sep 191
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 August 13, 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 13, 2026.
This Vliegwinkel deal was found by Cheapflights users on 8/10. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:55 am -
1 stop28h 20m
Fri 9/183:10 pm -
1 stop29h 15m
Deal found 8/10![Air Canada logo]()
$360
This Orbitz deal was found by Cheapflights users on 8/9. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/254:30 pm -
1 stop23h 10m
Thu 10/294:40 pm -
1 stop23h 05m
Deal found 8/9![Air Canada logo]()
$372
This Expedia deal was found by Cheapflights users on 8/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/104:00 pm -
2 stops27h 00m
Sat 10/173:45 pm -
2 stops52h 40m
Deal found 8/9![Multiple Airlines logo]()
$823
This Gotogate deal was found by Cheapflights users on 8/11. 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.
Thu 9/104:00 pm -
2 stops27h 00m
Thu 9/173:45 pm -
2 stops47h 40m
Deal found 8/11![Multiple Airlines logo]()
$866
This Travelocity deal was found by Cheapflights users on 8/9. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/810:19 pm -
2 stops20h 41m
Tue 9/153:45 pm -
2 stops47h 40m
Deal found 8/9![Multiple Airlines logo]()
$985
This Air Canada deal was found by Cheapflights users on 8/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/44:20 pm -
2 stops26h 40m
Mon 9/712:35 pm -
2 stops25h 47m
Deal found 8/10![Multiple Airlines logo]()
$1,044
This Mytrip deal was found by Cheapflights users on 8/9. 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.
Thu 9/1010:19 pm -
2 stops20h 41m
Sun 9/136:55 pm -
2 stops25h 30m
Deal found 8/9![Multiple Airlines logo]()
$1,068
This Air Canada deal was found by Cheapflights users on 8/12. 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 11/134:30 pm -
2 stops25h 30m
Tue 11/1712:35 pm -
2 stops24h 10m
Deal found 8/12![Multiple Airlines logo]()
$1,091
This Mytrip deal was found by Cheapflights users on 8/10. 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.
Thu 9/103:45 pm -
3 stops27h 15m
Fri 9/1812:35 pm -
3 stops30h 25m
Deal found 8/10![Multiple Airlines logo]()
$1,125
This Air Canada deal was found by Cheapflights users on 8/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/274:20 pm -
2 stops26h 40m
Mon 8/3112:35 pm -
2 stops26h 49m
Deal found 8/10![Multiple Airlines logo]()
$1,152
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 13, 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 13, 2026.
This Air Canada deal was found by Cheapflights users on 8/13. 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 -
1 stop23h 10m
Mon 11/305:40 pm -
2 stops23h 13m
Deal found 8/13![Air Canada logo]()
$481
This United Airlines deal was found by Cheapflights users on 8/8. 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 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 stop16h 44m
Deal found 8/8![United Airlines logo]()
$664
This Delta deal was found by Cheapflights users on 8/11. 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 12/46:00 am -
1 stop8h 10m
Thu 12/104:25 pm -
1 stop9h 14m
Deal found 8/11![Delta logo]()
$688
This Travelocity deal was found by Cheapflights users on 8/9. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/810:19 pm -
2 stops20h 41m
Tue 9/153:45 pm -
2 stops47h 40m
Deal found 8/9![Multiple Airlines logo]()
$985
This Delta deal was found by Cheapflights users on 8/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:00 am -
1 stop8h 14m
Thu 9/33:34 pm -
1 stop9h 00m
Deal found 8/10![Delta logo]()
$778
This Delta deal was found by Cheapflights users on 8/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:00 am -
1 stop8h 12m
Fri 9/183:32 pm -
1 stop9h 09m
Deal found 8/10![Delta logo]()
$793
This Delta deal was found by Cheapflights users on 8/11. 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 10/146:00 am -
1 stop8h 12m
Mon 10/193:32 pm -
1 stop9h 10m
Deal found 8/11![Delta logo]()
$793
This Air Canada deal was found by Cheapflights users on 8/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/44:20 pm -
2 stops26h 40m
Mon 9/712:35 pm -
2 stops25h 47m
Deal found 8/10![Multiple Airlines logo]()
$1,044
This Delta deal was found by Cheapflights users on 8/9. 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 9/226:00 am -
1 stop8h 12m
Mon 9/283:32 pm -
1 stop9h 09m
Deal found 8/9![Delta logo]()
$797
This Delta deal was found by Cheapflights users on 8/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/246:00 am -
1 stop8h 05m
Sat 1/304:25 pm -
1 stop8h 55m
Deal found 8/10![Delta logo]()
$797
This Air Canada deal was found by Cheapflights users on 8/12. 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 11/134:30 pm -
2 stops25h 30m
Tue 11/1712:35 pm -
2 stops24h 10m
Deal found 8/12![Multiple Airlines logo]()
$1,091
This Delta deal was found by Cheapflights users on 8/13. 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 8/13![Delta logo]()
$817
This Mytrip deal was found by Cheapflights users on 8/10. 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.
Thu 9/244:00 pm -
2 stops22h 35m
Fri 10/212:35 pm -
3 stops26h 25m
Deal found 8/10![Multiple Airlines logo]()
$1,159
This Delta deal was found by Cheapflights users on 8/8. 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.
Thu 8/276:00 am -
1 stop8h 14m
Wed 9/23:34 pm -
1 stop9h 00m
Deal found 8/8![Delta logo]()
$818
This Mytrip deal was found by Cheapflights users on 8/10. 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.
Thu 9/1010:19 pm -
2 stops20h 41m
Fri 9/1812:35 pm -
2 stops22h 46m
Deal found 8/10![Multiple Airlines logo]()
$1,162
This Delta deal was found by Cheapflights users on 8/11. 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 -
1 stop8h 14m
Mon 8/313:34 pm -
1 stop9h 00m
Deal found 8/11![Delta logo]()
$843
This Air Canada deal was found by Cheapflights users on 8/8. 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.
Fri 10/94:00 pm -
2 stops27h 00m
Tue 10/1312:35 pm -
2 stops25h 47m
Deal found 8/8![Multiple Airlines logo]()
$1,170
This Delta deal was found by Cheapflights users on 8/13. 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 10/176:00 am -
1 stop8h 12m
Wed 10/213:32 pm -
1 stop9h 10m
Deal found 8/13![Delta logo]()
$884
This Mytrip deal was found by Cheapflights users on 8/9. 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.
Mon 9/143:45 pm -
3 stops16h 25m
Fri 9/1812:35 pm -
2 stops22h 46m
Deal found 8/9![Multiple Airlines logo]()
$1,225
This Mytrip deal was found by Cheapflights users on 8/13. 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 9/273:45 pm -
3 stops27h 15m
Sun 10/46:55 pm -
2 stops20h 30m
Deal found 8/13![Multiple Airlines logo]()
$1,265
Last-minute flights from Dulles Intl to Saint LuciaDiscover last-minute flight deals from Dulles Intl to Saint Lucia. Data last updated August 13, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to Saint Lucia. Data last updated August 13, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 8/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/274:20 pm -
2 stops26h 40m
Mon 8/3112:35 pm -
2 stops26h 49m
Deal found 8/10![Multiple Airlines logo]()
$1,152
This Air Canada deal was found by Cheapflights users on 8/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/44:20 pm -
2 stops26h 40m
Mon 9/712:35 pm -
2 stops25h 47m
Deal found 8/10![Multiple Airlines logo]()
$1,044
This Travelocity deal was found by Cheapflights users on 8/9. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/810:19 pm -
2 stops20h 41m
Tue 9/153:45 pm -
2 stops47h 40m
Deal found 8/9![Multiple Airlines logo]()
$985
This Vliegwinkel deal was found by Cheapflights users on 8/10. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:55 am -
1 stop28h 20m
Fri 9/183:10 pm -
1 stop29h 15m
Deal found 8/10![Air Canada logo]()
$360
This Gotogate deal was found by Cheapflights users on 8/11. 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.
Thu 9/104:00 pm -
2 stops27h 00m
Thu 9/173:45 pm -
2 stops47h 40m
Deal found 8/11![Multiple Airlines logo]()
$866
This Mytrip deal was found by Cheapflights users on 8/9. 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.
Thu 9/1010:19 pm -
2 stops20h 41m
Sun 9/136:55 pm -
2 stops25h 30m
Deal found 8/9![Multiple Airlines logo]()
$1,068
This Mytrip deal was found by Cheapflights users on 8/10. 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.
Thu 9/103:45 pm -
3 stops27h 15m
Fri 9/1812:35 pm -
3 stops30h 25m
Deal found 8/10![Multiple Airlines logo]()
$1,125
This Mytrip deal was found by Cheapflights users on 8/10. 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.
Thu 9/244:00 pm -
2 stops22h 35m
Fri 10/212:35 pm -
3 stops26h 25m
Deal found 8/10![Multiple Airlines logo]()
$1,159
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 13, 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 13, 2026.
This Gotogate deal was found by Cheapflights users on 8/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/308:15 am -
2 stops54h 05m
Deal found 8/10![Air Canada logo]()
$154
This Air Canada deal was found by Cheapflights users on 8/9. 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 11/54:30 pm -
1 stop23h 10m
Deal found 8/9![Air Canada logo]()
$173
This Air Canada deal was found by Cheapflights users on 8/11. 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 11/154:30 pm -
1 stop23h 10m
Deal found 8/11![Air Canada logo]()
$177
This Travelocity deal was found by Cheapflights users on 8/10. 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.
Wed 1/274:30 pm -
1 stop23h 10m
Deal found 8/10![Air Canada logo]()
$238
This FlightHub deal was found by Cheapflights users on 8/10. 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 FlightHub 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 8/10![Air Canada logo]()
$262
This Mytrip deal was found by Cheapflights users on 8/12. 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 9/263:45 pm -
2 stops21h 55m
Deal found 8/12![Multiple Airlines logo]()
$264
This Air Canada deal was found by Cheapflights users on 8/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/265:40 pm -
2 stops46h 00m
Deal found 8/10![Air Canada logo]()
$282
This Delta deal was found by Cheapflights users on 8/12. 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 -
1 stop8h 14m
Deal found 8/12![Delta logo]()
$294
This Mytrip deal was found by Cheapflights users on 8/9. 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.
Tue 12/110:10 pm -
2 stops19h 50m
Deal found 8/9![Multiple Airlines logo]()
$464
This Gotogate deal was found by Cheapflights users on 8/11. 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.
Tue 8/259:55 am -
2 stops33h 05m
Deal found 8/11![Multiple Airlines logo]()
$536
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 1/211:07 am -
2 stops44h 38m
Deal found 8/11![Multiple Airlines logo]()
$561
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 13, 2026.
Round-trip from | $360 (Vliegwinkel) |
|---|---|
One-way from | $154 (Gotogate) |
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 2,558,603 searches. Data last updated August 13, 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
Wed 11/25
4:30 pm-4:40 pm
1 stop23h 10m
Castries Hewanorra
Mon 11/30
5:40 pm-3:53 pm
2 stops23h 13m
$481
Washington, D.C.Castries
IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra
IADUVF
Washington, D.C. Dulles Intl
Sat 9/19
6:15 am-1:31 pm
1 stop7h 16m
Castries Hewanorra
Sat 9/26
2:35 pm-7:19 am
1 stop16h 44m
$664
Washington, D.C.Castries
IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra
IADUVF
Washington, D.C. Dulles Intl
Fri 12/4
6:00 am-3:10 pm
1 stop8h 10m
Castries Hewanorra
Thu 12/10
4:25 pm-12:39 am
1 stop9h 14m
$688
Washington, D.C.Castries
IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra
IADUVF
Washington, D.C. Dulles Intl
Sat 8/29
6:00 am-2:14 pm
1 stop8h 14m
Castries Hewanorra
Thu 9/3
3:34 pm-12:34 am
1 stop9h 00m
$778
Washington, D.C.Castries
IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra
IADUVF
Washington, D.C. Dulles Intl
Mon 9/14
6:00 am-2:12 pm
1 stop8h 12m
Castries Hewanorra
Fri 9/18
3:32 pm-12:41 am
1 stop9h 09m
$793
Washington, D.C.Castries
IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra
IADUVF
Washington, D.C. Dulles Intl
Wed 10/14
6:00 am-2:12 pm
1 stop8h 12m
Castries Hewanorra
Mon 10/19
3:32 pm-12:42 am
1 stop9h 10m
$793
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
Mon 9/28
3:32 pm-12:41 am
1 stop9h 09m
$797
Quickest round-trip
Washington, D.C.Castries
IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra
IADUVF
Washington, D.C. Dulles Intl
Sun 1/24
6:00 am-3:05 pm
1 stop8h 05m
Castries Hewanorra
Sat 1/30
4:25 pm-12:20 am
1 stop8h 55m
$797
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
$817
Washington, D.C.Castries
IAD Washington, D.C. Dulles Intl - UVF Castries Hewanorra
IADUVF
Washington, D.C. Dulles Intl
Thu 8/27
6:00 am-2:14 pm
1 stop8h 14m
Castries Hewanorra
Wed 9/2
3:34 pm-12:34 am
1 stop9h 00m
$818
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 13, 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.
Comfort
7.8
Crew
8.5
Overall
7.8
Food
7.2
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Crew
8.5
Overall
7.8
Food
7.2
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Crew
8.5
Overall
7.8
Food
7.2
Boarding
8.1
Entertainment
7.8
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 August 13, 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 August 13, 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 |