$130+ Cheap flights from Boise (BOI) to Dulles Intl (IAD)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — IAD
Oct 30 — Nov 61
Round-trip
1 adult, Economy
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Find cheap flights from Boise to Dulles Intl 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 Boise to Dulles Intl
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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 September 30, 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 September 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/227:55 pm -
1 stop31h 15m
Wed 12/212:06 pm -
2 stops34h 48m
Deal found 9/29![Frontier logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/227:55 pm -
1 stop31h 15m
Tue 12/110:33 pm -
2 stops48h 21m
Deal found 9/29![Frontier logo]()
$297
This Cheapflightsfares deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/92:50 pm -
1 stop13h 30m
Sun 10/116:00 am -
1 stop9h 55m
Deal found 9/30![Frontier logo]()
$298
This Expedia deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/192:50 pm -
1 stop13h 30m
Tue 10/277:02 am -
1 stop10h 21m
Deal found 9/26![Multiple Airlines logo]()
$299
This Expedia deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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
Thu 10/297:02 am -
1 stop10h 21m
Deal found 9/26![Multiple Airlines logo]()
$305
This Cheapflightsfares deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/192:50 pm -
1 stop13h 30m
Thu 10/226:00 am -
1 stop9h 55m
Deal found 9/26![Frontier logo]()
$315
This Alaska Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/222:06 pm -
1 stop7h 53m
Mon 11/27:46 am -
1 stop9h 38m
Deal found 9/26![Alaska Airlines logo]()
$323
This American Airlines deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/112:18 pm -
1 stop8h 51m
Wed 12/94:39 pm -
1 stop8h 03m
Deal found 9/25![American Airlines logo]()
$324
This American Airlines deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/97:00 am -
1 stop6h 48m
Sat 12/127:18 am -
1 stop8h 33m
Deal found 9/25![American Airlines logo]()
$327
This Kiwi.com deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/227:55 pm -
1 stop31h 15m
Thu 12/310:33 pm -
2 stops24h 21m
Deal found 9/29![Frontier logo]()
$341
This Delta deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/263:00 pm -
1 stop6h 26m
Sun 11/17:23 am -
1 stop7h 12m
Deal found 9/30![Delta logo]()
$347
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 September 30, 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 September 30, 2026.
This Delta deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/511:34 am -
1 stop6h 29m
Mon 12/77:06 pm -
1 stop7h 04m
Deal found 9/28![Delta logo]()
$323
This Alaska Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1010:41 am -
2 stops17h 03m
Mon 11/166:46 pm -
1 stop20h 44m
Deal found 9/26![Alaska Airlines logo]()
$368
This Delta deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/178:59 am -
1 stop9h 07m
Sat 10/316:00 am -
1 stop9h 34m
Deal found 9/26![Delta logo]()
$323
This Delta deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/263:00 pm -
1 stop6h 26m
Sun 11/17:23 am -
1 stop7h 12m
Deal found 9/29![Delta logo]()
$347
This Delta deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1211:10 pm -
1 stop7h 59m
Sun 11/157:00 am -
1 stop11h 05m
Deal found 9/28![Delta logo]()
$347
This Alaska Airlines deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:04 pm -
1 stop9h 36m
Mon 10/267:24 pm -
1 stop20h 23m
Deal found 9/27![Alaska Airlines logo]()
$466
This Delta deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/38:55 am -
1 stop9h 06m
Tue 10/206:13 am -
1 stop6h 29m
Deal found 9/26![Delta logo]()
$353
This Alaska Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:37 pm -
1 stop20h 13m
Sun 11/16:46 pm -
2 stops22h 42m
Deal found 9/26![Alaska Airlines logo]()
$487
This Delta deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1311:10 pm -
1 stop8h 49m
Sun 11/157:00 am -
1 stop11h 05m
Deal found 9/29![Delta logo]()
$371
This Delta deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2312:08 pm -
1 stop8h 41m
Mon 10/266:13 am -
1 stop6h 29m
Deal found 9/25![Delta logo]()
$385
This Delta deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/251:41 pm -
1 stop9h 00m
Tue 12/17:06 pm -
1 stop7h 04m
Deal found 9/30![Delta logo]()
$471
Last-minute flights from Boise to Dulles IntlDiscover last-minute flight deals from Boise to Dulles Intl. Data last updated September 30, 2026 and is based on user searches.
Discover last-minute flight deals from Boise to Dulles Intl. Data last updated September 30, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/38:55 am -
1 stop9h 06m
Tue 10/206:13 am -
1 stop6h 29m
Deal found 9/26![Delta logo]()
$353
This Cheapflightsfares deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/92:50 pm -
1 stop13h 30m
Sun 10/116:00 am -
1 stop9h 55m
Deal found 9/30![Frontier logo]()
$298
This Cheapflightsfares deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/92:50 pm -
1 stop13h 30m
Mon 10/126:00 am -
1 stop9h 55m
Deal found 9/29![Frontier logo]()
$358
This Expedia deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/192:50 pm -
1 stop13h 30m
Tue 10/277:02 am -
1 stop10h 21m
Deal found 9/26![Multiple Airlines logo]()
$299
This Cheapflightsfares deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/192:50 pm -
1 stop13h 30m
Thu 10/226:00 am -
1 stop9h 55m
Deal found 9/26![Frontier logo]()
$315
This Alaska Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/222:06 pm -
1 stop7h 53m
Mon 11/27:46 am -
1 stop9h 38m
Deal found 9/26![Alaska Airlines logo]()
$323
This Delta deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2310:34 am -
1 stop10h 15m
Sun 11/16:00 am -
1 stop9h 34m
Deal found 9/30![Delta logo]()
$371
This Alaska Airlines deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:43 am -
1 stop7h 47m
Wed 10/289:38 am -
2 stops14h 23m
Deal found 9/27![Alaska Airlines logo]()
$368
This Expedia deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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
Thu 10/297:02 am -
1 stop10h 21m
Deal found 9/26![Multiple Airlines logo]()
$305
This Delta deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/263:00 pm -
1 stop6h 26m
Sun 11/17:23 am -
1 stop7h 12m
Deal found 9/30![Delta logo]()
$347
This Alaska Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2812:58 pm -
1 stop9h 01m
Sat 10/317:02 am -
1 stop10h 21m
Deal found 9/29![Alaska Airlines logo]()
$361
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 September 30, 2026.
Search for one-way flight options from Boise to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 30, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/217:55 pm -
1 stop7h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Frontier logo]()
$130
This Cheapflightsfares deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares 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 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Frontier logo]()
$136
This Expedia deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/26![Frontier logo]()
$143
This Expedia deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/162:50 pm -
1 stop13h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Frontier logo]()
$146
This Kiwi.com deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/49:51 pm -
2 stops20h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Frontier logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/232:50 pm -
2 stops31h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Frontier logo]()
$150
This United Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/205:00 am -
1 stop6h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![United Airlines logo]()
$162
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 September 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $294 (Kiwi.com) |
One-way from | $130 (Cheapflightsfares) |
Popular in | August |
Cheapest in | May |
Average price | $488 |
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 7,457,451 searches. Data last updated September 30, 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
Quickest round-trip
BoiseWashington, D.C.
BOI Boise Air Term. Gowen Fld - IAD Washington, D.C. Dulles Intl
BOIIAD
Boise Air Term. Gowen Fld
Wed 11/11
2:51 pm-11:15 pm
1 stop6h 24m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$162
BoiseWashington, D.C.
BOI Boise Air Term. Gowen Fld - IAD Washington, D.C. Dulles Intl
BOIIAD
Boise Air Term. Gowen Fld
Tue 10/20
10:34 am-10:49 pm
1 stop10h 15m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$162
BoiseWashington, D.C.
BOI Boise Air Term. Gowen Fld - IAD Washington, D.C. Dulles Intl
BOIIAD
Boise Air Term. Gowen Fld
Sat 10/24
6:25 am-5:35 pm
1 stop9h 10m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$162
BoiseWashington, D.C.
BOI Boise Air Term. Gowen Fld - IAD Washington, D.C. Dulles Intl
BOIIAD
Boise Air Term. Gowen Fld
Wed 11/25
1:41 pm-12:41 am
1 stop9h 00m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$162
BoiseWashington, D.C.
BOI Boise Air Term. Gowen Fld - IAD Washington, D.C. Dulles Intl
BOIIAD
Boise Air Term. Gowen Fld
Wed 10/21
6:50 pm-7:31 am
1 stop10h 41m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$162
BoiseWashington, D.C.
BOI Boise Air Term. Gowen Fld - IAD Washington, D.C. Dulles Intl
BOIIAD
Boise Air Term. Gowen Fld
Thu 10/22
6:50 pm-5:46 am
1 stop8h 56m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$162
BoiseWashington, D.C.
BOI Boise Air Term. Gowen Fld - IAD Washington, D.C. Dulles Intl
BOIIAD
Boise Air Term. Gowen Fld
Tue 10/20
2:20 pm-1:06 am
1 stop8h 46m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$162
BoiseWashington, D.C.
BOI Boise Air Term. Gowen Fld - IAD Washington, D.C. Dulles Intl
BOIIAD
Boise Air Term. Gowen Fld
Mon 10/19
6:50 pm-7:01 am
1 stop10h 11m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$162
BoiseWashington, D.C.
BOI Boise Air Term. Gowen Fld - IAD Washington, D.C. Dulles Intl
BOIIAD
Boise Air Term. Gowen Fld
Fri 10/23
12:08 pm-10:49 pm
1 stop8h 41m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$186
BoiseWashington, D.C.
BOI Boise Air Term. Gowen Fld - IAD Washington, D.C. Dulles Intl
BOIIAD
Boise Air Term. Gowen Fld
Fri 10/23
2:51 pm-1:06 am
1 stop8h 15m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$186
Showing 1-10 of 21 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 September.
| 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
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 Boise to Washington, D.C. Dulles Intl Airport
What is the cheapest month to book a flight from Boise to Washington, D.C. Dulles Intl Airport?
Currently, May is the cheapest month in which you can book a flight from Boise to Washington, D.C. Dulles Intl Airport (average of $340). Flying from Boise to Washington, D.C. Dulles Intl Airport in August is currently the most expensive (average of $728). 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.
How much does it cost to fly round-trip from Boise to Washington, D.C. Dulles Intl Airport?
Airfare is typical for this route at the moment.
Boise to Washington, D.C. Dulles Intl Airport flights typically cost between $291 and $560 in November.The cheapest round-trip price found within the last 5 days was $294 on Frontier (Nov 22-Dec 2).
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 September 30, 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.
Food
7.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentEdward,Sep 2026
MCO - BWI
Food
7.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentEdward,Sep 2026
MCO - BWI
Food
7.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentEdward,Sep 2026
MCO - BWI
Food
7.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentEdward,Sep 2026
MCO - BWI
Food
7.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentEdward,Sep 2026
MCO - BWI
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
Arlington
Owings Mills
Lanham
Chantilly
Woodbridge
Tysons
Reston
Herndon
Hyattsville
Rockville
Fredericksburg
Falls Church
Sterling
Hanover
Laurel
Springfield
Oxon Hill
Clinton
Hunt Valley
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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 7,457,451 searches. Data last updated September 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$176 | Average$326 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$245 | Average$511 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$262 | Average$540 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$340 | Average$422 | FlexibilityNo cancel fee | On-time63% |