$188+ 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 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — UVF
May 17 — May 241
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 April 17, 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 April 17, 2026.
This Mytrip deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” 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 6/13:45 pm
IAD
- UVF
2 stops22h 25m
Air Canada
Tue 6/93:05 pm
UVF
- IAD
1 stop24h 24m
Air Canada
Deal found 4/17![Air Canada logo]()
$406
This Orbitz deal was found by Cheapflights users on 4/13. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/154:05 pm
IAD
- UVF
1 stop22h 05m
Air Canada
Fri 6/193:05 pm
UVF
- IAD
1 stop24h 19m
Air Canada
Deal found 4/13![Air Canada logo]()
$422
This Air Canada deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1810:10 pm
IAD
- UVF
2 stops16h 10m
Air Canada
Tue 6/233:05 pm
UVF
- IAD
1 stop24h 19m
Air Canada
Deal found 4/15![Air Canada logo]()
$427
This FlightHub deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 6/1710:10 pm
IAD
- UVF
2 stops40h 10m
Air Canada
Tue 6/233:05 pm
UVF
- IAD
1 stop24h 19m
Air Canada
Deal found 4/14![Air Canada logo]()
$432
This FlightHub deal was found by Cheapflights users on 4/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/14:05 pm
IAD
- UVF
1 stop22h 05m
Air Canada
Fri 6/53:05 pm
UVF
- IAD
2 stops27h 53m
Air Canada
Deal found 4/12![Air Canada logo]()
$436
This FlightHub deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 5/2710:10 pm
IAD
- UVF
2 stops39h 55m
Air Canada
Tue 6/23:05 pm
UVF
- IAD
2 stops16h 39m
Air Canada
Deal found 4/14![Air Canada logo]()
$457
This Air Canada deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 4/14![Air Canada logo]()
$480
This Air Canada deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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
Tue 9/13:15 pm
UVF
- IAD
2 stops25h 20m
Air Canada
Deal found 4/14![Air Canada logo]()
$490
This Orbitz deal was found by Cheapflights users on 4/13. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/14:20 pm
IAD
- SLU
2 stops26h 40m
Multiple Airlines
Mon 7/63:45 pm
SLU
- IAD
2 stops47h 39m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$836
This Gotogate deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/299:55 am
IAD
- SLU
2 stops33h 05m
Multiple Airlines
Sun 6/712:35 pm
SLU
- IAD
2 stops31h 54m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$943
This Mytrip deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/165:15 pm
IAD
- SLU
2 stops25h 45m
Multiple Airlines
Sun 7/1912:35 pm
SLU
- IAD
2 stops27h 37m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$954
This Orbitz deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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 5/314:05 pm
IAD
- SLU
2 stops26h 55m
Multiple Airlines
Sun 6/712:35 pm
SLU
- IAD
2 stops31h 54m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$971
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 April 17, 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 April 17, 2026.
This Delta deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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 5/117:38 pm
IAD
- UVF
1 stop18h 27m
Delta
Thu 5/143:25 pm
UVF
- IAD
1 stop17h 51m
Delta
Deal found 4/16![Delta logo]()
$806
This Mytrip deal was found by Cheapflights users on 4/12. 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.
Thu 7/165:15 pm
IAD
- SLU
2 stops25h 45m
Multiple Airlines
Tue 7/2112:35 pm
SLU
- IAD
3 stops26h 26m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$1,009
This Delta deal was found by Cheapflights users on 4/12. 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.
Fri 5/86:08 am
IAD
- UVF
1 stop7h 57m
Delta
Thu 5/143:25 pm
UVF
- IAD
1 stop9h 26m
Delta
Deal found 4/12![Delta logo]()
$841
This Delta deal was found by Cheapflights users on 4/12. 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.
Tue 4/216:00 am
IAD
- UVF
1 stop8h 02m
Delta
Tue 4/283:22 pm
UVF
- IAD
1 stop9h 20m
Delta
Deal found 4/12![Delta logo]()
$956
This Mytrip deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” 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 6/23:45 pm
IAD
- SLU
3 stops27h 15m
Multiple Airlines
Tue 6/912:35 pm
SLU
- IAD
3 stops26h 28m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$1,106
This Delta deal was found by Cheapflights users on 4/12. 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 4/227:06 am
IAD
- UVF
1 stop6h 56m
Delta
Tue 4/283:22 pm
UVF
- IAD
1 stop9h 20m
Delta
Deal found 4/12![Delta logo]()
$956
This Mytrip deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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 5/308:18 am
IAD
- SLU
3 stops30h 17m
Multiple Airlines
Sun 6/79:10 am
SLU
- IAD
2 stops25h 36m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$1,106
This Delta deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” 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 6/17:38 pm
IAD
- UVF
1 stop18h 27m
Delta
Tue 6/93:33 pm
UVF
- IAD
1 stop9h 11m
Delta
Deal found 4/17![Delta logo]()
$998
This Mytrip deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/165:15 pm
IAD
- SLU
2 stops25h 45m
Multiple Airlines
Sun 7/1912:35 pm
SLU
- IAD
3 stops26h 26m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$1,111
This Delta deal was found by Cheapflights users on 4/13. 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.
Sun 5/246:08 am
IAD
- UVF
1 stop7h 57m
Delta
Thu 5/283:25 pm
UVF
- IAD
1 stop9h 26m
Delta
Deal found 4/13![Delta logo]()
$1,045
This Travelocity deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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 8/128:19 am
IAD
- SLU
2 stops34h 41m
Multiple Airlines
Wed 8/1912:35 pm
SLU
- IAD
2 stops31h 49m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$1,236
This Delta deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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 5/106:08 am
IAD
- UVF
1 stop7h 57m
Delta
Thu 5/143:25 pm
UVF
- IAD
1 stop17h 51m
Delta
Deal found 4/16![Delta logo]()
$1,075
This Mytrip deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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 5/309:45 am
IAD
- SLU
3 stops33h 15m
Multiple Airlines
Sat 6/612:35 pm
SLU
- IAD
3 stops26h 28m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$1,261
This Delta deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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 5/77:38 pm
IAD
- UVF
1 stop18h 27m
Delta
Wed 5/133:25 pm
UVF
- IAD
1 stop9h 26m
Delta
Deal found 4/16![Delta logo]()
$1,091
This Mytrip deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” 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 5/113:45 pm
IAD
- SLU
3 stops27h 15m
Multiple Airlines
Mon 5/1812:35 pm
SLU
- IAD
3 stops26h 54m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$1,321
This Delta deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 5/66:00 am
IAD
- UVF
1 stop8h 02m
Delta
Sun 5/103:25 pm
UVF
- IAD
1 stop9h 26m
Delta
Deal found 4/14![Delta logo]()
$1,100
This Delta deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 5/136:08 am
IAD
- UVF
1 stop7h 57m
Delta
Tue 5/193:25 pm
UVF
- IAD
1 stop9h 26m
Delta
Deal found 4/14![Delta logo]()
$1,106
This Mytrip deal was found by Cheapflights users on 4/13. 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.
Wed 7/14:20 pm
IAD
- SLU
3 stops19h 45m
Multiple Airlines
Mon 7/67:10 pm
SLU
- IAD
3 stops19h 51m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$1,348
This Delta deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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 5/36:00 am
IAD
- UVF
1 stop8h 02m
Delta
Wed 5/63:22 pm
UVF
- IAD
1 stop9h 20m
Delta
Deal found 4/15![Delta logo]()
$1,125
This Mytrip deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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 5/314:05 pm
IAD
- SLU
2 stops23h 30m
Multiple Airlines
Sun 6/75:00 am
SLU
- IAD
2 stops16h 26m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$1,412
Last-minute flights from Dulles Intl to Saint LuciaDiscover last-minute flight deals from Dulles Intl to Saint Lucia. Data last updated April 17, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to Saint Lucia. Data last updated April 17, 2026 and is based on user searches.
This Justfly.com deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 4/224:30 pm
IAD
- UVF
1 stop22h 55m
Air Canada
Sun 4/264:05 pm
UVF
- IAD
1 stop28h 24m
Air Canada
Deal found 4/14![Air Canada logo]()
$566
This Justfly.com deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 4/238:15 am
IAD
- UVF
2 stops31h 05m
Air Canada
Sun 4/264:05 pm
UVF
- IAD
2 stops28h 32m
Air Canada
Deal found 4/14![Air Canada logo]()
$570
This Expedia deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/238:15 am
IAD
- UVF
2 stops31h 05m
Air Canada
Mon 4/274:15 pm
UVF
- IAD
1 stop23h 24m
Air Canada
Deal found 4/14![Air Canada logo]()
$776
This Air Canada deal was found by Cheapflights users on 4/12. 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.
Sun 4/264:30 pm
IAD
- UVF
1 stop22h 50m
Air Canada
Wed 4/294:20 pm
UVF
- IAD
1 stop23h 19m
Air Canada
Deal found 4/12![Air Canada logo]()
$562
This Mytrip deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” 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 5/113:45 pm
IAD
- SLU
3 stops27h 15m
Multiple Airlines
Mon 5/1812:35 pm
SLU
- IAD
3 stops26h 54m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$1,321
This Gotogate deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/299:55 am
IAD
- SLU
2 stops33h 05m
Multiple Airlines
Sun 6/712:35 pm
SLU
- IAD
2 stops31h 54m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$943
This Mytrip deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” 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 5/305:06 pm
IAD
- SLU
3 stops25h 54m
Multiple Airlines
Tue 6/212:35 pm
SLU
- IAD
3 stops22h 37m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$1,071
This Mytrip deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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 5/308:18 am
IAD
- SLU
3 stops30h 17m
Multiple Airlines
Sun 6/79:10 am
SLU
- IAD
2 stops25h 36m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$1,106
This Mytrip deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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 5/309:45 am
IAD
- SLU
3 stops33h 15m
Multiple Airlines
Sat 6/612:35 pm
SLU
- IAD
3 stops26h 28m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$1,261
This Orbitz deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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 5/314:05 pm
IAD
- SLU
2 stops26h 55m
Multiple Airlines
Sun 6/712:35 pm
SLU
- IAD
2 stops31h 54m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$971
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 April 17, 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 April 17, 2026.
This FlightHub deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2012:38 pm
IAD
- UVF
2 stops50h 42m
Air Canada
Deal found 4/14![Air Canada logo]()
$188
This Travelocity deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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 4/284:30 pm
IAD
- UVF
1 stop22h 50m
Air Canada
Deal found 4/16![Air Canada logo]()
$189
This Air Canada deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 5/218:18 am
IAD
- UVF
2 stops29h 47m
Air Canada
Deal found 4/14![Air Canada logo]()
$218
This Expedia deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 5/119:55 am
IAD
- UVF
1 stop28h 10m
Air Canada
Deal found 4/14![Air Canada logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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.
Tue 5/267:37 pm
IAD
- UVF
3 stops42h 03m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$316
This Kiwi.com deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/204:05 pm
IAD
- UVF
1 stop21h 35m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$330
This Mytrip deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 5/233:45 pm
IAD
- UVF
2 stops21h 55m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$350
This Kiwi.com deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 5/297:45 am
IAD
- SLU
3 stops29h 25m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$357
This Delta deal was found by Cheapflights users on 4/12. 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.
Mon 4/277:06 am
IAD
- UVF
1 stop6h 56m
Delta
Deal found 4/12![Delta logo]()
$403
This Mytrip deal was found by Cheapflights users on 4/12. 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.
Thu 10/85:35 pm
IAD
- SLU
3 stops21h 00m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$663
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 April 17, 2026.
Round-trip from | $406 (Mytrip) |
|---|---|
One-way from | $188 (FlightHub) |
Popular in | November |
Cheapest in | December |
Average price | $736 |
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 April 17, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Saint Lucia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Washington, D.C.Castries
IAD - UVF
IADUVF
Washington, D.C. Dulles Intl
Mon 5/11
7:38 pm-2:05 pm
1 stop18h 27m
Castries Hewanorra
Thu 5/14
3:25 pm-9:16 am
1 stop17h 51m
$806
Washington, D.C.Castries
IAD - UVF
IADUVF
Washington, D.C. Dulles Intl
Fri 5/8
6:08 am-2:05 pm
1 stop7h 57m
Castries Hewanorra
Thu 5/14
3:25 pm-12:51 am
1 stop9h 26m
$841
Washington, D.C.Castries
IAD - UVF
IADUVF
Washington, D.C. Dulles Intl
Tue 4/21
6:00 am-2:02 pm
1 stop8h 02m
Castries Hewanorra
Tue 4/28
3:22 pm-12:42 am
1 stop9h 20m
$956
Quickest round-trip
Washington, D.C.Castries
IAD - UVF
IADUVF
Washington, D.C. Dulles Intl
Wed 4/22
7:06 am-2:02 pm
1 stop6h 56m
Castries Hewanorra
Tue 4/28
3:22 pm-12:42 am
1 stop9h 20m
$956
Washington, D.C.Castries
IAD - UVF
IADUVF
Washington, D.C. Dulles Intl
Mon 6/1
7:38 pm-2:05 pm
1 stop18h 27m
Castries Hewanorra
Tue 6/9
3:33 pm-12:44 am
1 stop9h 11m
$998
Washington, D.C.Castries
IAD - SLU
IADSLU
Washington, D.C. Dulles Intl
Thu 7/16
5:15 pm-7:00 pm
2 stops25h 45m
Castries George F. L. Charle
Tue 7/21
12:35 pm-3:01 pm
3 stops26h 26m
$1,009
Washington, D.C.Castries
IAD - UVF
IADUVF
Washington, D.C. Dulles Intl
Sun 5/24
6:08 am-2:05 pm
1 stop7h 57m
Castries Hewanorra
Thu 5/28
3:25 pm-12:51 am
1 stop9h 26m
$1,045
Washington, D.C.Castries
IAD - UVF
IADUVF
Washington, D.C. Dulles Intl
Sun 5/10
6:08 am-2:05 pm
1 stop7h 57m
Castries Hewanorra
Thu 5/14
3:25 pm-9:16 am
1 stop17h 51m
$1,075
Washington, D.C.Castries
IAD - UVF
IADUVF
Washington, D.C. Dulles Intl
Thu 5/7
7:38 pm-2:05 pm
1 stop18h 27m
Castries Hewanorra
Wed 5/13
3:25 pm-12:51 am
1 stop9h 26m
$1,091
Washington, D.C.Castries
IAD - UVF
IADUVF
Washington, D.C. Dulles Intl
Wed 5/6
6:00 am-2:02 pm
1 stop8h 02m
Castries Hewanorra
Sun 5/10
3:25 pm-12:51 am
1 stop9h 26m
$1,100
Showing 1-10 of 30 resultsSorted by cheapest first
Best time to book a flight from Dulles Intl to Saint Lucia
Have a flexible travel schedule? Discover the best time to fly to Saint Lucia from Dulles Intl with our price prediction graph.
IAD-UVF
IAD-SLU
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Saint Lucia
IAD-LC0
IAD-UVF
IAD-SLU
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Saint Lucia?
Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Saint Lucia (average of $342). Flying from Washington, D.C. Dulles Intl Airport to Saint Lucia in June is currently the most expensive (average of $1,475). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing Saint Lucia
Get insights into the airlines that provide service to Saint Lucia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Saint Lucia. Reviews last updated April 17, 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.
Crew
8.5
Comfort
7.9
Food
7.2
Overall
7.9
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Comfort
7.9
Food
7.2
Overall
7.9
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Comfort
7.9
Food
7.2
Overall
7.9
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Related info for your journey
Find useful and relevant information for your journey from Dulles Intl to Saint Lucia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Alternative routes for Dulles Intl to Saint Lucia
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Saint Lucia by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Dulles Intl to Saint Lucia by cabin class
Find flights from Dulles Intl to Saint Lucia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Dulles Intl and Saint Lucia flights
Browse other Dulles Intl and Saint Lucia flight options. Last updated on April 17, 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 April 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$351 | Average$762 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$452 | Average$877 | FlexibilityNo cancel fee | On-timeN/A |