$101+ Cheap flights from Boise (BOI) to Dulles Intl (IAD)
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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — IAD
Sep 17 — Sep 241
Round-trip
1 adult, Economy
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Find cheap flights from Boise to Dulles Intl with Cheapflights
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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
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Cheapest flights from Boise to Dulles IntlExplore the most affordable flight options available from Boise to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2026.
Explore the most affordable flight options available from Boise to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2026.
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/141:40 pm -
1 stop9h 02m
Tue 10/206:13 am -
1 stop6h 29m
Deal found 8/12![Delta logo]()
$201
This Expedia deal was found by Cheapflights users on 8/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/142:50 pm -
1 stop13h 30m
Thu 9/176:00 am -
1 stop9h 55m
Deal found 8/17![Frontier logo]()
$204
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/201:06 pm -
1 stop8h 29m
Fri 10/237:05 am -
1 stop10h 15m
Deal found 8/13![Delta logo]()
$226
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1312:08 pm -
1 stop8h 41m
Tue 10/206:13 am -
1 stop6h 29m
Deal found 8/12![Delta logo]()
$246
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/141:40 pm -
1 stop9h 02m
Mon 10/196:13 am -
1 stop6h 29m
Deal found 8/12![Delta logo]()
$252
This Expedia deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/262:50 pm -
1 stop13h 30m
Sun 11/16:46 pm -
1 stop20h 42m
Deal found 8/12![Multiple Airlines logo]()
$264
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Mon 9/282:50 pm -
1 stop13h 30m
Mon 10/56:00 am -
1 stop9h 55m
Deal found 8/14![Frontier logo]()
$267
This Expedia deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/102:50 pm -
1 stop13h 30m
Thu 9/176:00 am -
1 stop9h 55m
Deal found 8/12![Frontier logo]()
$268
This Delta deal was found by Cheapflights users on 8/14. 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.
Mon 10/261:40 pm -
1 stop9h 02m
Sun 11/16:13 am -
1 stop6h 29m
Deal found 8/14![Delta logo]()
$276
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1611:10 pm -
1 stop9h 00m
Mon 10/196:13 am -
1 stop6h 29m
Deal found 8/12![Delta logo]()
$277
This Travelocity deal was found by Cheapflights users on 8/16. 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.
Mon 10/192:50 pm -
1 stop13h 30m
Wed 10/287:02 am -
1 stop10h 21m
Deal found 8/16![Multiple Airlines logo]()
$279
This Expedia deal was found by Cheapflights users on 8/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/142:50 pm -
1 stop13h 30m
Mon 9/215:57 pm -
1 stop17h 59m
Deal found 8/17![Multiple Airlines logo]()
$285
Best flights from Boise to Dulles IntlDiscover carefully curated flight deals from Boise to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 18, 2026.
Discover carefully curated flight deals from Boise to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 18, 2026.
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2211:10 pm -
1 stop8h 09m
Mon 10/267:05 am -
1 stop10h 15m
Deal found 8/13![Delta logo]()
$252
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/264:20 pm -
1 stop11h 20m
Mon 9/287:47 pm -
1 stop20h 15m
Deal found 8/14![Alaska Airlines logo]()
$343
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:50 pm -
1 stop9h 05m
Sat 10/32:43 pm -
1 stop8h 52m
Deal found 8/13![United Airlines logo]()
$347
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2611:10 pm -
1 stop8h 09m
Sun 11/16:13 am -
1 stop6h 29m
Deal found 8/13![Delta logo]()
$276
This Delta deal was found by Cheapflights users on 8/15. 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.
Sat 9/192:11 pm -
1 stop8h 30m
Tue 9/226:47 pm -
1 stop7h 12m
Deal found 8/15![Delta logo]()
$303
This Delta deal was found by Cheapflights users on 8/15. 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.
Wed 9/3010:34 am -
1 stop10h 22m
Sun 10/47:25 am -
1 stop9h 51m
Deal found 8/15![Delta logo]()
$327
This Delta deal was found by Cheapflights users on 8/17. 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.
Fri 11/63:00 pm -
1 stop6h 26m
Mon 11/96:58 pm -
1 stop6h 58m
Deal found 8/17![Delta logo]()
$327
This Delta deal was found by Cheapflights users on 8/15. 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.
Fri 9/42:53 pm -
1 stop6h 28m
Wed 9/97:25 am -
1 stop9h 51m
Deal found 8/15![Delta logo]()
$333
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1310:34 am -
1 stop10h 15m
Sun 10/186:13 am -
1 stop6h 29m
Deal found 8/12![Delta logo]()
$345
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1312:08 pm -
1 stop8h 41m
Mon 10/196:13 am -
1 stop6h 29m
Deal found 8/12![Delta logo]()
$351
Last-minute flights from Boise to Dulles IntlDiscover last-minute flight deals from Boise to Dulles Intl. Data last updated August 18, 2026 and is based on user searches.
Discover last-minute flight deals from Boise to Dulles Intl. Data last updated August 18, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2812:24 pm -
1 stop6h 56m
Tue 9/15:26 pm -
1 stop7h 14m
Deal found 8/13![United Airlines logo]()
$300
This Delta deal was found by Cheapflights users on 8/14. 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.
Tue 9/11:59 pm -
1 stop8h 35m
Tue 9/87:25 am -
1 stop9h 51m
Deal found 8/14![Delta logo]()
$308
This Delta deal was found by Cheapflights users on 8/15. 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.
Fri 9/42:53 pm -
1 stop6h 28m
Wed 9/97:25 am -
1 stop9h 51m
Deal found 8/15![Delta logo]()
$333
This Expedia deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/102:50 pm -
1 stop13h 30m
Thu 9/176:00 am -
1 stop9h 55m
Deal found 8/12![Frontier logo]()
$268
This Expedia deal was found by Cheapflights users on 8/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/142:50 pm -
1 stop13h 30m
Thu 9/176:00 am -
1 stop9h 55m
Deal found 8/17![Frontier logo]()
$204
This Expedia deal was found by Cheapflights users on 8/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/142:50 pm -
1 stop13h 30m
Mon 9/215:57 pm -
1 stop17h 59m
Deal found 8/17![Multiple Airlines logo]()
$285
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/192:11 pm -
1 stop8h 30m
Tue 9/226:47 pm -
1 stop7h 12m
Deal found 8/13![Delta logo]()
$296
This Expedia deal was found by Cheapflights users on 8/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/231:15 pm -
1 stop8h 44m
Fri 9/256:00 am -
1 stop9h 55m
Deal found 8/17![Multiple Airlines logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Mon 9/282:50 pm -
1 stop13h 30m
Mon 10/56:00 am -
1 stop9h 55m
Deal found 8/14![Frontier logo]()
$267
This Delta deal was found by Cheapflights users on 8/15. 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.
Wed 9/3010:34 am -
1 stop10h 22m
Sun 10/47:25 am -
1 stop9h 51m
Deal found 8/15![Delta logo]()
$327
One-way flights from Boise to Dulles IntlSearch for one-way flight options from Boise to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated August 18, 2026.
Search for one-way flight options from Boise to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated August 18, 2026.
This Delta deal was found by Cheapflights users on 8/14. 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.
Sat 9/52:53 pm -
1 stop6h 28m
Deal found 8/14![Delta logo]()
$101
This Expedia deal was found by Cheapflights users on 8/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/22:50 pm -
1 stop13h 30m
Deal found 8/17![Frontier logo]()
$127
This Delta deal was found by Cheapflights users on 8/17. 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.
Wed 9/1610:34 am -
1 stop10h 22m
Deal found 8/17![Delta logo]()
$152
This Delta deal was found by Cheapflights users on 8/14. 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.
Sun 9/65:30 am -
1 stop6h 39m
Deal found 8/14![Delta logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/81:24 pm -
2 stops38h 56m
Deal found 8/16![Frontier logo]()
$173
This United Airlines deal was found by Cheapflights users on 8/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/132:51 pm -
1 stop6h 24m
Deal found 8/14![United Airlines logo]()
$176
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/297:10 pm -
2 stops14h 45m
Deal found 8/13![United Airlines logo]()
$179
This Alaska Airlines deal was found by Cheapflights users on 8/17. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/272:17 pm -
1 stop7h 42m
Deal found 8/17![Alaska Airlines logo]()
$182
This Priceline deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/152:06 pm -
1 stop7h 53m
Deal found 8/13![Alaska Airlines logo]()
$191
This United Airlines deal was found by Cheapflights users on 8/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/510:36 am -
1 stop6h 47m
Deal found 8/15![United Airlines logo]()
$207
This Expedia deal was found by Cheapflights users on 8/14. 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.
Sun 9/132:50 pm -
1 stop13h 30m
Deal found 8/14![Frontier logo]()
$220
This deal was found by Cheapflights users on 8/15. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/65:00 am -
1 stop6h 29m
Deal found 8/15![United Airlines logo]()
$231
Find flight deals from Boise to Dulles Intl
Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to Dulles Intl (IAD). 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 August 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $201 (Delta) |
One-way from | $101 (Delta) |
Popular in | August |
Cheapest in | May |
Average price | $571 |
Cheapflights Fare Finder
Customize your flight search to find flights from Boise to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 18, 2026.
Use the filters below to find and compare flights from Boise to Washington, D.C. Dulles Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BoiseWashington, D.C.
BOI Boise Air Term. Gowen Fld - IAD Washington, D.C. Dulles Intl
BOIIAD
Boise Air Term. Gowen Fld
Thu 10/22
11:10 pm-9:19 am
1 stop8h 09m
Washington, D.C. Dulles Intl
Mon 10/26
7:05 am-3:20 pm
1 stop10h 15m
$252
BoiseWashington, D.C.
BOI Boise Air Term. Gowen Fld - IAD Washington, D.C. Dulles Intl
BOIIAD
Boise Air Term. Gowen Fld
Mon 10/26
11:10 pm-9:19 am
1 stop8h 09m
Washington, D.C. Dulles Intl
Sun 11/1
6:13 am-10:42 am
1 stop6h 29m
$276
BoiseWashington, D.C.
BOI Boise Air Term. Gowen Fld - IAD Washington, D.C. Dulles Intl
BOIIAD
Boise Air Term. Gowen Fld
Sat 9/19
2:11 pm-12:41 am
1 stop8h 30m
Washington, D.C. Dulles Intl
Tue 9/22
6:47 pm-11:59 pm
1 stop7h 12m
$303
BoiseWashington, D.C.
BOI Boise Air Term. Gowen Fld - IAD Washington, D.C. Dulles Intl
BOIIAD
Boise Air Term. Gowen Fld
Wed 9/30
10:34 am-10:56 pm
1 stop10h 22m
Washington, D.C. Dulles Intl
Sun 10/4
7:25 am-3:16 pm
1 stop9h 51m
$327
Quickest round-trip
BoiseWashington, D.C.
BOI Boise Air Term. Gowen Fld - IAD Washington, D.C. Dulles Intl
BOIIAD
Boise Air Term. Gowen Fld
Fri 11/6
3:00 pm-11:26 pm
1 stop6h 26m
Washington, D.C. Dulles Intl
Mon 11/9
6:58 pm-11:56 pm
1 stop6h 58m
$327
BoiseWashington, D.C.
BOI Boise Air Term. Gowen Fld - IAD Washington, D.C. Dulles Intl
BOIIAD
Boise Air Term. Gowen Fld
Fri 9/4
2:53 pm-11:21 pm
1 stop6h 28m
Washington, D.C. Dulles Intl
Wed 9/9
7:25 am-3:16 pm
1 stop9h 51m
$333
BoiseWashington, D.C.
BOI Boise Air Term. Gowen Fld - IAD Washington, D.C. Dulles Intl
BOIIAD
Boise Air Term. Gowen Fld
Sat 9/26
4:20 pm-5:40 am
1 stop11h 20m
Washington, D.C. Dulles Intl
Mon 9/28
7:47 pm-2:02 pm
1 stop20h 15m
$343
BoiseWashington, D.C.
BOI Boise Air Term. Gowen Fld - IAD Washington, D.C. Dulles Intl
BOIIAD
Boise Air Term. Gowen Fld
Tue 10/13
10:34 am-10:49 pm
1 stop10h 15m
Washington, D.C. Dulles Intl
Sun 10/18
6:13 am-10:42 am
1 stop6h 29m
$345
BoiseWashington, D.C.
BOI Boise Air Term. Gowen Fld - IAD Washington, D.C. Dulles Intl
BOIIAD
Boise Air Term. Gowen Fld
Tue 9/29
6:50 pm-5:55 am
1 stop9h 05m
Washington, D.C. Dulles Intl
Sat 10/3
2:43 pm-9:35 pm
1 stop8h 52m
$347
BoiseWashington, D.C.
BOI Boise Air Term. Gowen Fld - IAD Washington, D.C. Dulles Intl
BOIIAD
Boise Air Term. Gowen Fld
Tue 10/13
12:08 pm-10:49 pm
1 stop8h 41m
Washington, D.C. Dulles Intl
Mon 10/19
6:13 am-10:42 am
1 stop6h 29m
$351
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Boise to Dulles Intl
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 Boise to Dulles Intl in August.
| 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 Boise-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boise-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boise-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Boise-Washington, D.C. Dulles Intl Airport 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 Boise-Washington, D.C. Dulles Intl Airport 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 Boise to Dulles Intl
Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Boise with our price prediction graph.
BOI-IAD
Estimated round-trip price
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Cheapflights Insights
Everything you need to know about your flight from Boise to Washington, D.C. Dulles Intl Airport
Reviews of airlines servicing Dulles Intl
Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated August 18, 2026.
See what other customers who have flown with Southwest,Alaska Airlines, andDelta from Boise to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Food
7.0
Crew
8.6
Boarding
8.1
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Food
7.0
Crew
8.6
Boarding
8.1
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Food
7.0
Crew
8.6
Boarding
8.1
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Food
7.0
Crew
8.6
Boarding
8.1
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Food
7.0
Crew
8.6
Boarding
8.1
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Related info for your journey
Find useful and relevant information for your journey from Boise to Dulles Intl. 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 Washington, D.C. Dulles Intl Airport?
Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locationsAlexandria
Owings Mills
Arlington
Tysons
Lanham
Reston
Herndon
Rockville
Chantilly
Hyattsville
Fredericksburg
Falls Church
Sterling
Hanover
Laurel
Springfield
Oxon Hill
Clinton
Hunt Valley
Woodbridge
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Other flights to Dulles Intl
Explore flights to Dulles Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 18, 2026.
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Boise and Dulles Intl flights
Browse other Boise and Dulles Intl flight options. Last updated on August 18, 2026.
Other flights from Boise
Browse through other flights departing from Boise. Flights are based on user searches made on Cheapflights and were last updated on August 18, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Boise to Dulles Intl
Discover the top 4 airlines that operate flights from Boise to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$176 | Average$346 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$245 | Average$488 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$278 | Average$540 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$340 | Average$422 | FlexibilityNo cancel fee | On-time63% |