$248+ 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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — UVF
Jul 31 — Aug 71
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Dulles Intl to Saint Lucia with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Dulles Intl to Saint Lucia
Cheapest
Best
Last-minute
One-way
Cheapest flights from Dulles Intl to Saint LuciaExplore the most affordable flight options available from Dulles Intl to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 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 July 1, 2026.
This Air Canada deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/14:30 pm
IAD
- UVF
1 stop23h 10m
Air Canada
Fri 11/65:40 pm
UVF
- IAD
1 stop23h 05m
Air Canada
Deal found 6/30![Air Canada logo]()
$572
This Justfly.com deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/291:19 pm
IAD
- UVF
2 stops26h 21m
Air Canada
Sun 11/15:40 pm
UVF
- IAD
2 stops27h 43m
Air Canada
Deal found 6/30![Air Canada logo]()
$585
This Air Canada deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/244:20 pm
IAD
- UVF
1 stop22h 00m
Air Canada
Fri 8/283:15 pm
UVF
- IAD
1 stop24h 09m
Air Canada
Deal found 6/28![Air Canada logo]()
$587
This Air Canada deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/84:30 pm
IAD
- UVF
1 stop23h 10m
Air Canada
Fri 11/135:40 pm
UVF
- IAD
1 stop23h 05m
Air Canada
Deal found 6/28![Air Canada logo]()
$592
This FlightHub deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/263:45 pm
IAD
- UVF
2 stops46h 35m
Air Canada
Tue 9/13:15 pm
UVF
- IAD
1 stop23h 07m
Air Canada
Deal found 6/28![Air Canada logo]()
$600
This Justfly.com deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/151:19 pm
IAD
- UVF
2 stops26h 21m
Air Canada
Mon 11/235:40 pm
UVF
- IAD
2 stops19h 08m
Air Canada
Deal found 6/28![Air Canada logo]()
$605
This Expedia deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/129:55 am
IAD
- SLU
2 stops33h 05m
Multiple Airlines
Sat 9/1912:35 pm
SLU
- IAD
2 stops26h 50m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$902
This Expedia deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/304:20 pm
IAD
- SLU
2 stops26h 40m
Multiple Airlines
Thu 9/33:45 pm
SLU
- IAD
2 stops47h 39m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$947
This Air Canada deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/124:00 pm
IAD
- SLU
2 stops27h 00m
Multiple Airlines
Fri 9/1812:35 pm
SLU
- IAD
2 stops22h 46m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$972
This Air Canada deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/154:00 pm
IAD
- SLU
2 stops27h 00m
Multiple Airlines
Tue 10/2012:35 pm
SLU
- IAD
2 stops25h 47m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$1,034
This Booking.com deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/65:50 pm
IAD
- SLU
2 stops24h 10m
Multiple Airlines
Fri 12/119:10 am
SLU
- IAD
2 stops27h 06m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$1,112
This Air Canada deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/94:00 pm
IAD
- SLU
2 stops27h 00m
Multiple Airlines
Tue 10/1312:35 pm
SLU
- IAD
2 stops25h 47m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$1,122
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 July 1, 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 July 1, 2026.
This Delta deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:00 am
IAD
- UVF
1 stop8h 14m
Delta
Tue 9/13:34 pm
UVF
- IAD
1 stop9h 00m
Delta
Deal found 6/28![Delta logo]()
$688
This Orbitz deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/144:00 pm
IAD
- SLU
2 stops27h 00m
Multiple Airlines
Tue 10/2012:35 pm
SLU
- IAD
2 stops26h 50m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$902
This Delta deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:00 am
IAD
- UVF
1 stop8h 14m
Delta
Wed 9/23:34 pm
UVF
- IAD
1 stop9h 00m
Delta
Deal found 6/30![Delta logo]()
$688
This Delta deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/306:00 am
IAD
- UVF
1 stop8h 14m
Delta
Tue 9/13:34 pm
UVF
- IAD
1 stop9h 00m
Delta
Deal found 6/30![Delta logo]()
$688
This Delta deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:00 am
IAD
- UVF
1 stop8h 12m
Delta
Wed 9/163:32 pm
UVF
- IAD
1 stop9h 08m
Delta
Deal found 6/29![Delta logo]()
$698
This Travelocity deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/279:55 am
IAD
- SLU
2 stops33h 05m
Multiple Airlines
Wed 9/3012:35 pm
SLU
- IAD
2 stops25h 47m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$902
This Delta deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:00 am
IAD
- UVF
1 stop8h 14m
Delta
Mon 8/313:34 pm
UVF
- IAD
1 stop9h 00m
Delta
Deal found 6/28![Delta logo]()
$698
This Delta deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:00 am
IAD
- UVF
1 stop8h 14m
Delta
Mon 8/313:34 pm
UVF
- IAD
1 stop9h 00m
Delta
Deal found 6/26![Delta logo]()
$708
This Air Canada deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/124:00 pm
IAD
- SLU
2 stops27h 00m
Multiple Airlines
Fri 9/1812:35 pm
SLU
- IAD
2 stops22h 46m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$972
This Air Canada deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/154:00 pm
IAD
- SLU
2 stops27h 00m
Multiple Airlines
Tue 10/2012:35 pm
SLU
- IAD
2 stops25h 47m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$1,034
This Delta deal was found by Cheapflights users on 6/25. 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 7/106:00 am
IAD
- UVF
1 stop8h 12m
Delta
Wed 7/153:33 pm
UVF
- IAD
1 stop9h 08m
Delta
Deal found 6/25![Delta logo]()
$863
This Air Canada deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/94:00 pm
IAD
- SLU
2 stops27h 00m
Multiple Airlines
Tue 10/1312:35 pm
SLU
- IAD
2 stops25h 47m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$1,132
This Delta deal was found by Cheapflights users on 6/25. 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 7/106:00 am
IAD
- UVF
1 stop8h 12m
Delta
Tue 7/143:33 pm
UVF
- IAD
1 stop17h 53m
Delta
Deal found 6/25![Delta logo]()
$863
This Mytrip deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1310:19 pm
IAD
- SLU
2 stops20h 41m
Multiple Airlines
Tue 8/1811:45 am
SLU
- IAD
3 stops26h 30m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$1,144
This Delta deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:00 am
IAD
- UVF
1 stop8h 14m
Delta
Tue 8/183:34 pm
UVF
- IAD
1 stop9h 00m
Delta
Deal found 6/29![Delta logo]()
$873
This Delta deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:00 am
IAD
- UVF
1 stop8h 14m
Delta
Sat 8/293:34 pm
UVF
- IAD
1 stop9h 00m
Delta
Deal found 6/26![Delta logo]()
$883
This Air Canada deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/154:20 pm
IAD
- SLU
2 stops26h 40m
Multiple Airlines
Sat 8/2212:35 pm
SLU
- IAD
2 stops26h 49m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$1,243
This Delta deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/116:00 am
IAD
- UVF
1 stop8h 12m
Delta
Sun 7/123:33 pm
UVF
- IAD
1 stop9h 08m
Delta
Deal found 6/26![Delta logo]()
$888
This Mytrip deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/244:20 pm
IAD
- SLU
2 stops15h 50m
Multiple Airlines
Fri 8/286:00 pm
SLU
- IAD
3 stops26h 24m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$1,256
This Air Canada deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/254:20 pm
IAD
- SLU
2 stops26h 40m
Multiple Airlines
Sat 8/112:35 pm
SLU
- IAD
2 stops26h 49m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$1,375
This Mytrip deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/189:45 am
IAD
- SLU
3 stops23h 45m
Multiple Airlines
Tue 8/2511:45 am
SLU
- IAD
3 stops23h 28m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$1,431
Last-minute flights from Dulles Intl to Saint LuciaDiscover last-minute flight deals from Dulles Intl to Saint Lucia. Data last updated July 1, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to Saint Lucia. Data last updated July 1, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/95:15 pm
IAD
- UVF
1 stop20h 55m
Air Canada
Tue 7/143:05 pm
UVF
- IAD
1 stop24h 19m
Air Canada
Deal found 6/26![Air Canada logo]()
$692
This Mytrip deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/103:45 pm
IAD
- SLU
3 stops27h 15m
Multiple Airlines
Tue 7/1411:45 am
SLU
- IAD
2 stops22h 40m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$1,453
This Mytrip deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/144:20 pm
IAD
- SLU
2 stops26h 40m
Multiple Airlines
Sun 7/1912:35 pm
SLU
- IAD
2 stops21h 50m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$1,337
This Air Canada deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/204:20 pm
IAD
- UVF
1 stop21h 50m
Air Canada
Fri 7/243:05 pm
UVF
- IAD
1 stop24h 19m
Air Canada
Deal found 6/26![Air Canada logo]()
$668
This Expedia deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/244:20 pm
IAD
- SLU
2 stops26h 40m
Multiple Airlines
Sat 8/112:35 pm
SLU
- IAD
2 stops26h 49m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$1,362
This Air Canada deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/254:20 pm
IAD
- SLU
2 stops26h 40m
Multiple Airlines
Sat 8/112:35 pm
SLU
- IAD
2 stops26h 49m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$1,375
This Justfly.com deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/279:55 am
IAD
- UVF
1 stop28h 15m
Air Canada
Fri 7/313:05 pm
UVF
- IAD
1 stop25h 33m
Air Canada
Deal found 6/28![Air Canada logo]()
$639
This Air Canada deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/273:45 pm
IAD
- UVF
2 stops22h 25m
Air Canada
Tue 8/43:15 pm
UVF
- IAD
2 stops23h 46m
Air Canada
Deal found 6/27![Air Canada logo]()
$674
This Mytrip deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/279:55 am
IAD
- SLU
3 stops26h 10m
Multiple Airlines
Mon 8/33:45 pm
SLU
- IAD
3 stops28h 39m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$1,464
This American Airlines deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:03 am
IAD
- UVF
1 stop9h 17m
American Airlines
Wed 8/52:49 pm
UVF
- IAD
2 stops21h 59m
American Airlines
Deal found 6/30![American Airlines logo]()
$636
This American Airlines deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/306:33 am
IAD
- UVF
1 stop7h 47m
American Airlines
Thu 8/63:19 pm
UVF
- IAD
1 stop7h 36m
American Airlines
Deal found 6/27![American Airlines logo]()
$666
This American Airlines deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/308:22 pm
IAD
- UVF
1 stop17h 58m
American Airlines
Tue 8/41:15 pm
UVF
- IAD
2 stops10h 55m
American Airlines
Deal found 6/27![American Airlines logo]()
$671
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 July 1, 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 July 1, 2026.
This Air Canada deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/54:30 pm
IAD
- UVF
1 stop23h 10m
Air Canada
Deal found 6/27![Air Canada logo]()
$248
This Orbitz deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/263:45 pm
IAD
- UVF
2 stops46h 25m
Air Canada
Deal found 6/28![Air Canada logo]()
$262
This Air Canada deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/104:20 pm
IAD
- UVF
1 stop22h 00m
Air Canada
Deal found 6/25![Air Canada logo]()
$264
This American Airlines deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/265:03 am
IAD
- UVF
1 stop9h 17m
American Airlines
Deal found 6/28![American Airlines logo]()
$307
This Delta deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/306:00 am
IAD
- UVF
1 stop8h 12m
Delta
Deal found 6/30![Delta logo]()
$344
This Booking.com deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/308:18 am
IAD
- UVF
2 stops29h 52m
Air Canada
Deal found 6/30![Air Canada logo]()
$353
This Delta deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/76:00 am
IAD
- UVF
1 stop8h 12m
Delta
Deal found 6/29![Delta logo]()
$463
This Delta deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/96:00 am
IAD
- UVF
1 stop8h 12m
Delta
Deal found 6/29![Delta logo]()
$489
This Delta deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:00 am
IAD
- UVF
1 stop8h 12m
Delta
Deal found 6/28![Delta logo]()
$518
This Air Canada deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/133:45 pm
IAD
- UVF
2 stops22h 25m
Air Canada
Deal found 6/28![Air Canada logo]()
$521
This Air Canada deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1010:14 pm
IAD
- SLU
2 stops20h 46m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$565
This Mytrip deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/249:55 am
IAD
- SLU
2 stops27h 40m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$823
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 July 1, 2026.
Round-trip from | $559 (Justfly.com) |
|---|---|
One-way from | $248 (Air Canada) |
Popular in | November |
Cheapest in | December |
Average price | $1,264 |
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 July 1, 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
Quickest round-trip
Washington, D.C.Castries
IAD - UVF
IADUVF
Washington, D.C. Dulles Intl
Wed 8/26
6:00 am-2:14 pm
1 stop8h 14m
Castries Hewanorra
Tue 9/1
3:34 pm-12:34 am
1 stop9h 00m
$688
Washington, D.C.Castries
IAD - UVF
IADUVF
Washington, D.C. Dulles Intl
Tue 9/1
6:00 am-2:14 pm
1 stop8h 14m
Castries Hewanorra
Wed 9/2
3:34 pm-12:34 am
1 stop9h 00m
$688
Washington, D.C.Castries
IAD - UVF
IADUVF
Washington, D.C. Dulles Intl
Sun 8/30
6:00 am-2:14 pm
1 stop8h 14m
Castries Hewanorra
Tue 9/1
3:34 pm-12:34 am
1 stop9h 00m
$688
Washington, D.C.Castries
IAD - UVF
IADUVF
Washington, D.C. Dulles Intl
Fri 9/11
6:00 am-2:12 pm
1 stop8h 12m
Castries Hewanorra
Wed 9/16
3:32 pm-12:40 am
1 stop9h 08m
$698
Washington, D.C.Castries
IAD - UVF
IADUVF
Washington, D.C. Dulles Intl
Wed 8/26
6:00 am-2:14 pm
1 stop8h 14m
Castries Hewanorra
Mon 8/31
3:34 pm-12:34 am
1 stop9h 00m
$698
Washington, D.C.Castries
IAD - UVF
IADUVF
Washington, D.C. Dulles Intl
Sat 8/29
6:00 am-2:14 pm
1 stop8h 14m
Castries Hewanorra
Mon 8/31
3:34 pm-12:34 am
1 stop9h 00m
$708
Washington, D.C.Castries
IAD - UVF
IADUVF
Washington, D.C. Dulles Intl
Fri 7/10
6:00 am-2:12 pm
1 stop8h 12m
Castries Hewanorra
Wed 7/15
3:33 pm-12:41 am
1 stop9h 08m
$863
Washington, D.C.Castries
IAD - UVF
IADUVF
Washington, D.C. Dulles Intl
Fri 7/10
6:00 am-2:12 pm
1 stop8h 12m
Castries Hewanorra
Tue 7/14
3:33 pm-9:26 am
1 stop17h 53m
$863
Washington, D.C.Castries
IAD - UVF
IADUVF
Washington, D.C. Dulles Intl
Wed 8/12
6:00 am-2:14 pm
1 stop8h 14m
Castries Hewanorra
Tue 8/18
3:34 pm-12:34 am
1 stop9h 00m
$873
Washington, D.C.Castries
IAD - UVF
IADUVF
Washington, D.C. Dulles Intl
Tue 8/25
6:00 am-2:14 pm
1 stop8h 14m
Castries Hewanorra
Sat 8/29
3:34 pm-12:34 am
1 stop9h 00m
$883
Showing 1-10 of 32 resultsSorted by cheapest first
Best time to book a flight from Dulles Intl to Saint Lucia
Have a flexible travel schedule? Discover the best time to fly to Saint Lucia from Dulles Intl with our price prediction graph.
IAD-UVF
IAD-SLU
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Saint Lucia
IAD-LC0
IAD-UVF
IAD-SLU
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Saint Lucia?
Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Saint Lucia (average of $342). Flying from Washington, D.C. Dulles Intl Airport to Saint Lucia in November is currently the most expensive (average of $832). 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 July 1, 2026.
Read reviews from past customers who have flown Delta and American Airlines from Washington, D.C. Dulles Intl Airport to Saint Lucia. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Entertainment
7.8
Overall
7.8
Comfort
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Entertainment
7.8
Overall
7.8
Comfort
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Entertainment
7.8
Overall
7.8
Comfort
7.8
Crew
8.5
Boarding
8.1
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 July 1, 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 July 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$351 | Average$776 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$452 | Average$986 | FlexibilityNo cancel fee | On-timeN/A |