$126+ Cheap flights from Dulles Intl (IAD) to Boise (BOI)
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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BOI
Mar 25 — Apr 11
1 adult, Economy
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Cheapest flights from Dulles Intl to BoiseExplore the most affordable flight options available from Dulles Intl to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 23, 2026.
Explore the most affordable flight options available from Dulles Intl to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 23, 2026.
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:00 am
IAD
- BOI
1 stop8h 12m
Delta
Sat 5/21:52 pm
BOI
- IAD
1 stop8h 03m
Delta
Deal found 2/21![Delta logo]()
$251
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1411:04 am
IAD
- BOI
2 stops11h 25m
Delta
Sat 4/181:52 pm
BOI
- IAD
1 stop8h 03m
Delta
Deal found 2/21![Delta logo]()
$256
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/47:00 am
IAD
- BOI
1 stop16h 01m
Delta
Tue 4/711:40 pm
BOI
- IAD
1 stop7h 30m
Delta
Deal found 2/21![Delta logo]()
$267
This Delta deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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 4/287:00 am
IAD
- BOI
1 stop11h 14m
Delta
Thu 5/712:16 pm
BOI
- IAD
1 stop9h 43m
Delta
Deal found 2/19![Delta logo]()
$283
This American Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/186:00 am
IAD
- BOI
1 stop8h 48m
American Airlines
Tue 3/246:33 pm
BOI
- IAD
2 stops12h 15m
American Airlines
Deal found 2/21![American Airlines logo]()
$284
This Expedia deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/286:47 pm
IAD
- BOI
2 stops22h 46m
Alaska Airlines
Tue 5/56:00 am
BOI
- IAD
1 stop10h 20m
Alaska Airlines
Deal found 2/19![Alaska Airlines logo]()
$292
This Alaska Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/177:11 pm
IAD
- BOI
1 stop17h 10m
Alaska Airlines
Wed 4/226:00 am
BOI
- IAD
1 stop16h 09m
Alaska Airlines
Deal found 2/21![Alaska Airlines logo]()
$303
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/57:00 am
IAD
- BOI
1 stop17h 04m
Delta
Tue 4/711:40 pm
BOI
- IAD
1 stop7h 30m
Delta
Deal found 2/21![Delta logo]()
$307
This Alaska Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/279:00 am
IAD
- BOI
1 stop8h 05m
Alaska Airlines
Sat 10/317:12 pm
BOI
- IAD
1 stop10h 16m
Alaska Airlines
Deal found 2/19![Alaska Airlines logo]()
$311
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/77:00 am
IAD
- BOI
1 stop8h 05m
Delta
Thu 4/91:45 pm
BOI
- IAD
1 stop8h 04m
Delta
Deal found 2/21![Delta logo]()
$318
This Delta deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/26:00 am
IAD
- BOI
2 stops10h 26m
Delta
Sat 5/92:25 pm
BOI
- IAD
1 stop7h 16m
Delta
Deal found 2/20![Delta logo]()
$320
Best flights from Dulles Intl to BoiseDiscover carefully curated flight deals from Dulles Intl to Boise that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 23, 2026.
Discover carefully curated flight deals from Dulles Intl to Boise that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 23, 2026.
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:00 am
IAD
- BOI
1 stop8h 12m
Delta
Thu 5/712:15 pm
BOI
- IAD
1 stop10h 00m
Delta
Deal found 2/21![Delta logo]()
$283
This Expedia deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/286:47 pm
IAD
- BOI
2 stops22h 46m
Alaska Airlines
Tue 5/56:00 am
BOI
- IAD
1 stop10h 20m
Alaska Airlines
Deal found 2/19![Alaska Airlines logo]()
$292
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:00 am
IAD
- BOI
1 stop8h 12m
Delta
Fri 4/171:52 pm
BOI
- IAD
1 stop8h 03m
Delta
Deal found 2/21![Delta logo]()
$307
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:00 am
IAD
- BOI
1 stop8h 12m
Delta
Fri 4/171:52 pm
BOI
- IAD
1 stop8h 03m
Delta
Deal found 2/21![Delta logo]()
$307
This Alaska Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:10 am
IAD
- BOI
1 stop17h 52m
Alaska Airlines
Sun 5/36:08 pm
BOI
- IAD
1 stop28h 01m
Alaska Airlines
Deal found 2/19![Alaska Airlines logo]()
$343
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/267:00 am
IAD
- BOI
1 stop16h 24m
Delta
Wed 4/2911:35 pm
BOI
- IAD
1 stop7h 40m
Delta
Deal found 2/21![Delta logo]()
$307
This Alaska Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:00 am
IAD
- BOI
1 stop9h 02m
Alaska Airlines
Wed 5/278:51 pm
BOI
- IAD
1 stop8h 43m
Alaska Airlines
Deal found 2/19![Alaska Airlines logo]()
$385
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/237:06 am
IAD
- BOI
1 stop8h 01m
Delta
Sun 4/2610:41 am
BOI
- IAD
1 stop11h 14m
Delta
Deal found 2/21![Delta logo]()
$334
This Delta deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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 7/146:00 am
IAD
- BOI
1 stop8h 36m
Delta
Wed 7/2211:30 pm
BOI
- IAD
1 stop7h 40m
Delta
Deal found 2/19![Delta logo]()
$379
This Delta deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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 7/146:00 am
IAD
- BOI
1 stop8h 36m
Delta
Tue 7/2111:30 pm
BOI
- IAD
1 stop7h 40m
Delta
Deal found 2/19![Delta logo]()
$379
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2812:12 pm
IAD
- BOI
2 stops9h 48m
Delta
Tue 5/199:16 pm
BOI
- IAD
2 stops11h 06m
Delta
Deal found 2/21![Delta logo]()
$384
Last-minute flights from Dulles Intl to BoiseDiscover last-minute flight deals from Dulles Intl to Boise. Data last updated February 23, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to Boise. Data last updated February 23, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/166:00 am
IAD
- BOI
1 stop8h 48m
Alaska Airlines
Fri 3/206:04 pm
BOI
- IAD
1 stop9h 36m
Alaska Airlines
Deal found 2/22![Alaska Airlines logo]()
$511
This American Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/186:00 am
IAD
- BOI
1 stop8h 48m
American Airlines
Tue 3/246:33 pm
BOI
- IAD
2 stops12h 15m
American Airlines
Deal found 2/21![American Airlines logo]()
$284
This United Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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.
Wed 3/184:10 pm
IAD
- BOI
1 stop9h 47m
United Airlines
Thu 3/265:00 am
BOI
- IAD
1 stop6h 05m
United Airlines
Deal found 2/19![United Airlines logo]()
$307
This Orbitz deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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 3/187:11 pm
IAD
- BOI
2 stops15h 17m
Alaska Airlines
Thu 3/268:20 am
BOI
- IAD
1 stop7h 51m
Alaska Airlines
Deal found 2/19![Alaska Airlines logo]()
$487
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/237:00 am
IAD
- BOI
1 stop11h 00m
Delta
Mon 3/301:45 pm
BOI
- IAD
1 stop8h 04m
Delta
Deal found 2/21![Delta logo]()
$423
This Expedia deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/237:11 pm
IAD
- BOI
2 stops15h 17m
Alaska Airlines
Mon 3/304:15 pm
BOI
- IAD
1 stop11h 25m
Alaska Airlines
Deal found 2/21![Alaska Airlines logo]()
$455
This Alaska Airlines deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/257:00 am
IAD
- BOI
1 stop10h 29m
Alaska Airlines
Mon 3/306:04 pm
BOI
- IAD
1 stop9h 36m
Alaska Airlines
Deal found 2/22![Alaska Airlines logo]()
$425
This Alaska Airlines deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/257:00 am
IAD
- BOI
1 stop10h 29m
Alaska Airlines
Sun 3/296:04 pm
BOI
- IAD
1 stop9h 36m
Alaska Airlines
Deal found 2/22![Alaska Airlines logo]()
$459
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/312:15 pm
IAD
- BOI
1 stop8h 54m
Delta
Thu 4/211:40 pm
BOI
- IAD
1 stop7h 30m
Delta
Deal found 2/21![Delta logo]()
$438
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/312:15 pm
IAD
- BOI
1 stop8h 54m
Delta
Fri 4/311:40 pm
BOI
- IAD
1 stop8h 33m
Delta
Deal found 2/21![Delta logo]()
$509
One-way flights from Dulles Intl to BoiseSearch for one-way flight options from Dulles Intl to Boise. Find affordable one-way fares based on user searches. Data last updated February 23, 2026.
Search for one-way flight options from Dulles Intl to Boise. Find affordable one-way fares based on user searches. Data last updated February 23, 2026.
This American Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:00 am
IAD
- BOI
1 stop7h 51m
American Airlines
Deal found 2/19![American Airlines logo]()
$126
This Delta deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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 4/1411:04 am
IAD
- BOI
2 stops11h 25m
Delta
Deal found 2/19![Delta logo]()
$131
This United Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/75:41 pm
IAD
- BOI
1 stop6h 56m
United Airlines
Deal found 2/20![United Airlines logo]()
$156
This Alaska Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/57:00 am
IAD
- BOI
1 stop29h 21m
Alaska Airlines
Deal found 2/20![Alaska Airlines logo]()
$187
This Delta deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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 4/167:00 am
IAD
- BOI
1 stop8h 12m
Delta
Deal found 2/19![Delta logo]()
$193
This American Airlines deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/56:00 am
IAD
- BOI
1 stop8h 48m
American Airlines
Deal found 2/23![American Airlines logo]()
$196
This Southwest deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/165:50 am
IAD
- BOI
1 stop6h 35m
Southwest
Deal found 2/21![Southwest logo]()
$202
This United Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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.
Wed 7/86:30 am
IAD
- BOI
1 stop9h 05m
United Airlines
Deal found 2/19![United Airlines logo]()
$206
This Expedia deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/257:00 am
IAD
- BOI
1 stop10h 29m
Alaska Airlines
Deal found 2/20![Alaska Airlines logo]()
$230
This American Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/76:40 am
IAD
- BOI
2 stops12h 12m
American Airlines
Deal found 2/20![American Airlines logo]()
$237
This Kiwi.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/256:20 am
IAD
- BOI
2 stops31h 00m
Frontier
Deal found 2/20![Frontier logo]()
$242
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/217:00 am
IAD
- BOI
1 stop9h 43m
Delta
Deal found 2/21![Delta logo]()
$249
Find flight deals from Dulles Intl to Boise
Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Boise (BOI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $251 (Delta) |
One-way from | $126 (American Airlines) |
Popular in | February |
Cheapest in | May |
Average price | $552 |
Cheapflights Fare Finder
Customize your flight search to find flights from Dulles Intl to Boise 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 February 23, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Boise that are best for you.
Fly from
Dulles Intl
Fly to
Boise
Route
Depart
Return
Price
Washington, D.C.Boise
IAD - BOI
IADBOI
Washington, D.C. Dulles Intl
Tue 4/28
7:00 am-1:12 pm
1 stop8h 12m
Boise Air Term. Gowen Fld
Thu 5/7
12:15 pm-12:15 am
1 stop10h 00m
$283
Washington, D.C.Boise
IAD - BOI
IADBOI
Washington, D.C. Dulles Intl
Tue 4/28
6:47 pm-3:33 pm
2 stops22h 46m
Boise Air Term. Gowen Fld
Tue 5/5
6:00 am-6:20 pm
1 stop10h 20m
$292
Washington, D.C.Boise
IAD - BOI
IADBOI
Washington, D.C. Dulles Intl
Tue 4/14
7:00 am-1:12 pm
1 stop8h 12m
Boise Air Term. Gowen Fld
Fri 4/17
1:52 pm-11:55 pm
1 stop8h 03m
$307
Washington, D.C.Boise
IAD - BOI
IADBOI
Washington, D.C. Dulles Intl
Wed 4/15
7:00 am-1:12 pm
1 stop8h 12m
Boise Air Term. Gowen Fld
Fri 4/17
1:52 pm-11:55 pm
1 stop8h 03m
$307
Washington, D.C.Boise
IAD - BOI
IADBOI
Washington, D.C. Dulles Intl
Sun 4/26
7:00 am-9:24 pm
1 stop16h 24m
Boise Air Term. Gowen Fld
Wed 4/29
11:35 pm-9:15 am
1 stop7h 40m
$307
Washington, D.C.Boise
IAD - BOI
IADBOI
Washington, D.C. Dulles Intl
Thu 4/23
7:06 am-1:07 pm
1 stop8h 01m
Boise Air Term. Gowen Fld
Sun 4/26
10:41 am-11:55 pm
1 stop11h 14m
$334
Washington, D.C.Boise
IAD - BOI
IADBOI
Washington, D.C. Dulles Intl
Wed 4/29
7:10 am-11:02 pm
1 stop17h 52m
Boise Air Term. Gowen Fld
Sun 5/3
6:08 pm-12:09 am
1 stop28h 01m
$343
Washington, D.C.Boise
IAD - BOI
IADBOI
Washington, D.C. Dulles Intl
Tue 7/14
6:00 am-12:36 pm
1 stop8h 36m
Boise Air Term. Gowen Fld
Wed 7/22
11:30 pm-9:10 am
1 stop7h 40m
$379
Washington, D.C.Boise
IAD - BOI
IADBOI
Washington, D.C. Dulles Intl
Tue 7/14
6:00 am-12:36 pm
1 stop8h 36m
Boise Air Term. Gowen Fld
Tue 7/21
11:30 pm-9:10 am
1 stop7h 40m
$379
Washington, D.C.Boise
IAD - BOI
IADBOI
Washington, D.C. Dulles Intl
Tue 4/28
12:12 pm-8:00 pm
2 stops9h 48m
Boise Air Term. Gowen Fld
Tue 5/19
9:16 pm-10:22 am
2 stops11h 06m
$384
Showing 1-10 of 20 results
Compare providers for flights from Dulles Intl to Boise
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Boise in February.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Boise flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Boise flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Boise flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Boise flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Boise flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Dulles Intl to Boise
Have a flexible travel schedule? Discover the best time to fly to Boise from Dulles Intl with our price prediction graph.
IAD-BOI
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 Boise
Reviews of airlines servicing Boise
Get insights into the airlines that provide service to Boise. 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 Boise. Reviews last updated February 23, 2026.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Washington, D.C. Dulles Intl Airport to Boise by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Crew
8.5
Food
7.1
Entertainment
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Comfort
7.8
Crew
8.5
Food
7.1
Entertainment
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Comfort
7.8
Crew
8.5
Food
7.1
Entertainment
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Comfort
7.8
Crew
8.5
Food
7.1
Entertainment
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Comfort
7.8
Crew
8.5
Food
7.1
Entertainment
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Related info for your journey
Find useful and relevant information for your journey from Dulles Intl to Boise. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Boise?
Book flights to Boise if you plan to visit one of these locationsOntario
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Other flights to Boise
Explore flights to Boise departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 23, 2026.
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Dulles Intl and Boise flights
Browse other Dulles Intl and Boise flight options. Last updated on February 23, 2026.
Other flights from Dulles Intl
Browse through other flights departing from Dulles Intl. Flights are based on user searches made on Cheapflights and were last updated on February 23, 2026.
Popular flight searches
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Top 4 airlines flying from Dulles Intl to Boise
Discover the top 4 airlines that operate flights from Dulles Intl to Boise. 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 February 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$182 | Average$418 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$227 | Average$318 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$278 | Average$496 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$429 | Average$504 | FlexibilityNo cancel fee | On-time63% |