$152+ Cheap flights from Washington, D.C. (WAS) to Boise (BOI)
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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — BOI
Oct 9 — Oct 161
Round-trip
1 adult, Economy
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Cheapest flights from Washington, D.C. to BoiseExplore the most affordable flight options available from Washington, D.C. to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 9, 2026.
Explore the most affordable flight options available from Washington, D.C. to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 9, 2026.
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/292:43 pm -
1 stop8h 52m
Sat 10/35:00 am -
1 stop6h 30m
Deal found 9/8![United Airlines logo]()
$303
This United Airlines deal was found by Cheapflights users on 9/9. 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 11/114:19 pm -
1 stop7h 13m
Wed 11/1812:31 pm -
1 stop7h 11m
Deal found 9/9![United Airlines logo]()
$303
This American Airlines deal was found by Cheapflights users on 9/5. 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.
Mon 11/95:00 am -
1 stop8h 25m
Tue 11/171:24 pm -
1 stop7h 05m
Deal found 9/5![American Airlines logo]()
$303
This Southwest deal was found by Cheapflights users on 9/6. 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.
Tue 10/63:05 pm -
2 stops10h 10m
Tue 10/132:25 pm -
1 stop7h 55m
Deal found 9/6![Southwest logo]()
$308
This Southwest deal was found by Cheapflights users on 9/7. 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.
Mon 11/96:40 pm -
1 stop8h 45m
Tue 11/171:05 pm -
2 stops8h 15m
Deal found 9/7![Southwest logo]()
$308
This Delta deal was found by Cheapflights users on 9/9. 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 10/167:05 am -
1 stop10h 15m
Mon 10/1910:34 am -
1 stop10h 15m
Deal found 9/9![Delta logo]()
$313
This Delta deal was found by Cheapflights users on 9/8. 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 10/167:30 am -
1 stop7h 05m
Mon 10/196:49 pm -
1 stop8h 56m
Deal found 9/8![Delta logo]()
$313
This Southwest deal was found by Cheapflights users on 9/9. 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.
Tue 10/274:00 pm -
2 stops9h 55m
Mon 11/25:35 am -
2 stops9h 20m
Deal found 9/9![Southwest logo]()
$313
This Southwest deal was found by Cheapflights users on 9/9. 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.
Mon 10/267:25 pm -
1 stop7h 40m
Mon 11/28:30 pm -
2 stops13h 40m
Deal found 9/9![Southwest logo]()
$314
This American Airlines deal was found by Cheapflights users on 9/4. 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.
Sat 11/77:18 am -
1 stop8h 33m
Tue 11/107:00 am -
1 stop6h 48m
Deal found 9/4![American Airlines logo]()
$319
This Southwest deal was found by Cheapflights users on 9/7. 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.
Tue 10/138:35 pm -
2 stops16h 45m
Sat 10/174:55 pm -
1 stop10h 45m
Deal found 9/7![Southwest logo]()
$319
This Southwest deal was found by Cheapflights users on 9/8. 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.
Tue 9/296:00 am -
2 stops15h 50m
Sat 10/35:55 am -
1 stop12h 20m
Deal found 9/8![Southwest logo]()
$319
Best flights from Washington, D.C. to BoiseDiscover carefully curated flight deals from Washington, D.C. to Boise that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
Discover carefully curated flight deals from Washington, D.C. to Boise that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/292:43 pm -
1 stop8h 52m
Sat 10/35:00 am -
1 stop6h 30m
Deal found 9/8![United Airlines logo]()
$303
This Southwest deal was found by Cheapflights users on 9/9. 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.
Mon 10/267:25 pm -
1 stop7h 40m
Mon 11/25:35 pm -
1 stop10h 10m
Deal found 9/9![Southwest logo]()
$303
This Delta deal was found by Cheapflights users on 9/6. 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 11/116:58 pm -
1 stop6h 58m
Wed 11/181:14 pm -
1 stop8h 33m
Deal found 9/6![Delta logo]()
$323
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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 10/247:02 am -
1 stop28h 54m
Wed 10/287:20 am -
1 stop8h 30m
Deal found 9/7![Alaska Airlines logo]()
$323
This Expedia deal was found by Cheapflights users on 9/9. 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 10/56:00 am -
1 stop9h 55m
Thu 10/82:50 pm -
1 stop13h 30m
Deal found 9/9![Frontier logo]()
$334
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Mon 10/55:00 am -
1 stop8h 24m
Thu 10/82:41 pm -
1 stop7h 18m
Deal found 9/9![American Airlines logo]()
$452
This United Airlines deal was found by Cheapflights users on 9/9. 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 10/176:10 am -
1 stop7h 18m
Sat 10/246:50 pm -
1 stop8h 56m
Deal found 9/9![United Airlines logo]()
$303
This Southwest deal was found by Cheapflights users on 9/9. 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.
Tue 10/276:20 am -
1 stop8h 55m
Mon 11/28:30 pm -
2 stops13h 40m
Deal found 9/9![Southwest logo]()
$314
This Delta deal was found by Cheapflights users on 9/4. 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 11/77:21 am -
2 stops10h 53m
Tue 11/106:45 pm -
1 stop8h 55m
Deal found 9/4![Delta logo]()
$328
This Delta deal was found by Cheapflights users on 9/5. 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 11/116:00 am -
2 stops8h 33m
Wed 11/183:00 pm -
1 stop6h 23m
Deal found 9/5![Delta logo]()
$328
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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 9/225:57 pm -
1 stop17h 59m
Sat 9/264:20 pm -
1 stop11h 20m
Deal found 9/7![Alaska Airlines logo]()
$377
This Southwest deal was found by Cheapflights users on 9/6. 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 1/92:40 pm -
1 stop8h 20m
Mon 1/1111:40 am -
2 stops10h 05m
Deal found 9/6![Southwest logo]()
$366
This Delta deal was found by Cheapflights users on 9/8. 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 10/287:20 am -
1 stop7h 15m
Sun 11/16:49 pm -
1 stop8h 56m
Deal found 9/8![Delta logo]()
$346
This Southwest deal was found by Cheapflights users on 9/6. 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.
Fri 1/293:15 pm -
1 stop8h 15m
Sun 1/313:05 pm -
2 stops12h 30m
Deal found 9/6![Southwest logo]()
$374
This Delta deal was found by Cheapflights users on 9/9. 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 9/226:10 am -
1 stop9h 34m
Fri 9/2511:10 pm -
1 stop8h 53m
Deal found 9/9![Delta logo]()
$363
This Southwest deal was found by Cheapflights users on 9/8. 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.
Tue 9/226:00 am -
2 stops15h 50m
Tue 9/2912:35 pm -
2 stops9h 20m
Deal found 9/8![Southwest logo]()
$407
This Delta deal was found by Cheapflights users on 9/7. 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 9/247:25 am -
1 stop9h 51m
Wed 9/3012:17 pm -
1 stop8h 39m
Deal found 9/7![Delta logo]()
$371
This Southwest deal was found by Cheapflights users on 9/7. 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.
Tue 9/296:00 am -
2 stops15h 50m
Wed 9/306:00 am -
1 stop9h 00m
Deal found 9/7![Southwest logo]()
$412
This Delta deal was found by Cheapflights users on 9/6. 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 11/207:01 am -
1 stop7h 32m
Sun 11/223:00 pm -
1 stop6h 23m
Deal found 9/6![Delta logo]()
$389
This Delta deal was found by Cheapflights users on 9/8. 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 9/236:00 am -
1 stop9h 01m
Wed 9/302:50 pm -
1 stop7h 09m
Deal found 9/8![Delta logo]()
$392
This Southwest deal was found by Cheapflights users on 9/9. 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.
Mon 10/264:35 pm -
1 stop10h 30m
Mon 11/25:35 am -
2 stops9h 20m
Deal found 9/9![Southwest logo]()
$436
This Delta deal was found by Cheapflights users on 9/5. 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 11/204:25 pm -
1 stop9h 34m
Sun 11/225:15 am -
1 stop6h 45m
Deal found 9/5![Delta logo]()
$405
This Southwest deal was found by Cheapflights users on 9/7. 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.
Tue 9/226:00 am -
2 stops15h 50m
Sat 9/268:30 am -
2 stops10h 20m
Deal found 9/7![Southwest logo]()
$477
This Southwest deal was found by Cheapflights users on 9/6. 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 10/1012:35 pm -
2 stops11h 15m
Tue 10/136:35 am -
1 stop8h 10m
Deal found 9/6![Southwest logo]()
$484
This Southwest deal was found by Cheapflights users on 9/9. 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.
Mon 10/54:35 pm -
1 stop10h 30m
Thu 10/86:10 am -
2 stops14h 45m
Deal found 9/9![Southwest logo]()
$560
This Southwest deal was found by Cheapflights users on 9/7. 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.
Wed 10/74:50 pm -
2 stops9h 05m
Mon 10/125:40 am -
2 stops8h 45m
Deal found 9/7![Southwest logo]()
$563
Last-minute flights from Washington, D.C. to BoiseDiscover last-minute flight deals from Washington, D.C. to Boise. Data last updated September 9, 2026 and is based on user searches.
Discover last-minute flight deals from Washington, D.C. to Boise. Data last updated September 9, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/292:43 pm -
1 stop8h 52m
Sat 10/35:00 am -
1 stop6h 30m
Deal found 9/8![United Airlines logo]()
$303
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/296:30 am -
1 stop6h 58m
Sat 10/35:00 am -
1 stop8h 04m
Deal found 9/8![United Airlines logo]()
$303
This Southwest deal was found by Cheapflights users on 9/8. 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.
Tue 9/296:00 am -
2 stops15h 50m
Sat 10/35:55 am -
1 stop12h 20m
Deal found 9/8![Southwest logo]()
$319
This Delta deal was found by Cheapflights users on 9/8. 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 10/36:15 am -
1 stop9h 14m
Tue 10/66:49 pm -
1 stop9h 13m
Deal found 9/8![Delta logo]()
$303
This Southwest deal was found by Cheapflights users on 9/6. 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.
Tue 10/63:05 pm -
2 stops10h 10m
Tue 10/132:25 pm -
1 stop7h 55m
Deal found 9/6![Southwest logo]()
$308
This Southwest deal was found by Cheapflights users on 9/7. 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.
Tue 10/138:35 pm -
2 stops16h 45m
Sat 10/174:55 pm -
1 stop10h 45m
Deal found 9/7![Southwest logo]()
$319
This Delta deal was found by Cheapflights users on 9/9. 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 10/167:05 am -
1 stop10h 15m
Mon 10/1910:34 am -
1 stop10h 15m
Deal found 9/9![Delta logo]()
$313
This Delta deal was found by Cheapflights users on 9/8. 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 10/167:30 am -
1 stop7h 05m
Mon 10/196:49 pm -
1 stop8h 56m
Deal found 9/8![Delta logo]()
$313
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 10/247:02 am -
1 stop28h 54m
Wed 10/287:20 am -
1 stop8h 30m
Deal found 9/6![Alaska Airlines logo]()
$323
This Southwest deal was found by Cheapflights users on 9/9. 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.
Mon 10/267:25 pm -
1 stop7h 40m
Mon 11/28:30 pm -
2 stops13h 40m
Deal found 9/9![Southwest logo]()
$314
This Southwest deal was found by Cheapflights users on 9/9. 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.
Tue 10/274:00 pm -
2 stops9h 55m
Mon 11/25:35 am -
2 stops9h 20m
Deal found 9/9![Southwest logo]()
$313
This Southwest deal was found by Cheapflights users on 9/9. 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.
Tue 10/278:35 pm -
2 stops16h 45m
Mon 11/28:30 pm -
2 stops13h 40m
Deal found 9/9![Southwest logo]()
$325
One-way flights from Washington, D.C. to BoiseSearch for one-way flight options from Washington, D.C. to Boise. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
Search for one-way flight options from Washington, D.C. to Boise. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/242:47 pm -
1 stop8h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![United Airlines logo]()
$152
This Delta deal was found by Cheapflights users on 9/8. 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 10/77:21 pm -
1 stop6h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Delta logo]()
$152
This American Airlines deal was found by Cheapflights users on 9/8. 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 10/75:00 am -
1 stop8h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![American Airlines logo]()
$152
This Delta deal was found by Cheapflights users on 9/9. 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 11/56:10 am -
2 stops8h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Delta logo]()
$157
This Southwest deal was found by Cheapflights users on 9/8. 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.
Wed 12/92:40 pm -
2 stops9h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Southwest logo]()
$157
This Delta deal was found by Cheapflights users on 9/7. 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 11/197:00 am -
1 stop7h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Delta logo]()
$162
This Delta deal was found by Cheapflights users on 9/7. 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 11/197:01 am -
1 stop7h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Delta logo]()
$162
This United Airlines deal was found by Cheapflights users on 9/7. 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 11/196:25 am -
1 stop7h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![United Airlines logo]()
$162
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Sun 11/88:15 am -
1 stop10h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![United Airlines logo]()
$176
This American Airlines deal was found by Cheapflights users on 9/5. 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 9/167:42 am -
1 stop8h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![American Airlines logo]()
$182
This Delta deal was found by Cheapflights users on 9/9. 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 11/87:22 am -
1 stop7h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Delta logo]()
$185
This Delta deal was found by Cheapflights users on 9/4. 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 11/87:05 am -
1 stop10h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Delta logo]()
$186
Find flight deals from Washington, D.C. to Boise
Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) 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 September 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $303 (Delta) |
One-way from | $152 (United Airlines) |
Popular in | December |
Cheapest in | May |
Average price | $418 |
Cheapflights Fare Finder
Customize your flight search to find flights from Washington, D.C. 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 7,457,451 searches. Data last updated September 9, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Boise that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
Washington, D.C.Boise
IAD Washington, D.C. Dulles Intl - BOI Boise Air Term. Gowen Fld
IADBOI
Washington, D.C. Dulles Intl
Thu 10/15
6:13 am-10:42 am
1 stop6h 29m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$152
Washington, D.C.Boise
IAD Washington, D.C. Dulles Intl - BOI Boise Air Term. Gowen Fld
IADBOI
Washington, D.C. Dulles Intl
Wed 12/9
6:15 am-3:06 pm
1 stop10h 51m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$152
Washington, D.C.Boise
IAD Washington, D.C. Dulles Intl - BOI Boise Air Term. Gowen Fld
IADBOI
Washington, D.C. Dulles Intl
Thu 11/5
7:23 am-12:35 pm
1 stop7h 12m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$152
Washington, D.C.Boise
IAD Washington, D.C. Dulles Intl - BOI Boise Air Term. Gowen Fld
IADBOI
Washington, D.C. Dulles Intl
Sat 10/24
2:47 pm-9:39 pm
1 stop8h 52m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$152
Washington, D.C.Boise
IAD Washington, D.C. Dulles Intl - BOI Boise Air Term. Gowen Fld
IADBOI
Washington, D.C. Dulles Intl
Sat 10/10
7:23 am-12:35 pm
1 stop7h 12m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$152
BaltimoreBoise
BWI Baltimore/Washington - BOI Boise Air Term. Gowen Fld
BWIBOI
Baltimore/Washington
Mon 11/9
7:25 pm-11:56 pm
1 stop6h 31m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$152
BaltimoreBoise
BWI Baltimore/Washington - BOI Boise Air Term. Gowen Fld
BWIBOI
Baltimore/Washington
Sat 10/10
7:30 am-12:35 pm
1 stop7h 05m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$152
BaltimoreBoise
BWI Baltimore/Washington - BOI Boise Air Term. Gowen Fld
BWIBOI
Baltimore/Washington
Wed 10/7
7:21 pm-11:59 pm
1 stop6h 38m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$152
Washington, D.C.Boise
DCA Washington, D.C. Reagan-National - BOI Boise Air Term. Gowen Fld
DCABOI
Washington, D.C. Reagan-National
Thu 11/5
7:59 am-1:34 pm
1 stop7h 35m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$152
Washington, D.C.Boise
DCA Washington, D.C. Reagan-National - BOI Boise Air Term. Gowen Fld
DCABOI
Washington, D.C. Reagan-National
Wed 12/9
2:40 pm-10:30 pm
2 stops9h 50m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$157
Showing 1-10 of 56 resultsSorted by cheapest first
Compare providers for flights from Washington, D.C. 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 Washington, D.C. to Boise 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 Washington, D.C.-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.-Boise flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Boise flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Washington, D.C.-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.-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 Washington, D.C. to Boise
Have a flexible travel schedule? Discover the best time to fly to Boise from Washington, D.C. with our price prediction graph.
WAS-BOI
IAD-BOI
BWI-BOI
DCA-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. to Boise
WAS-BOI
IAD-BOI
BWI-BOI
DCA-BOI
What is the cheapest month to book a flight from Washington, D.C. to Boise?
Currently, May is the cheapest month in which you can book a flight from Washington, D.C. to Boise (average of $372). Flying from Washington, D.C. to Boise in March is currently the most expensive (average of $630). 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 Washington, D.C. to Boise?
Airfare is below average for this route at the moment.
Washington, D.C. to Boise flights typically cost between $345 and $510 in November.The cheapest round-trip price found within the last 5 days was $303 on Delta (Nov 9-Nov 17).
How far ahead should I book a flight from Washington, D.C. to Boise?
Booking 30 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. to Boise. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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 September 9, 2026.
See what other customers who have flown with Southwest,Alaska Airlines, andDelta from Washington, D.C. to Boise 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
Crew
8.6
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Food
7.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Food
7.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Food
7.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Food
7.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Food
7.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Related info for your journey
Find useful and relevant information for your journey from Washington, D.C. 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
Meridian
Nampa
Caldwell
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Washington, D.C. and Boise flights
Browse other Washington, D.C. and Boise flight options. Last updated on September 9, 2026.
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Washington, D.C. to Boise flights
Consider these flights traveling from Washington, D.C. to Boise.
Top 5 airlines flying from Washington, D.C. to Boise
Discover the top 5 airlines that operate flights from Washington, D.C. 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 7,457,451 searches. Data last updated September 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$179 | Average$353 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$200 | Average$423 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$262 | Average$578 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$278 | Average$554 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$354 | Average$509 | FlexibilityNo cancel fee | On-time63% |