$107+ Cheap flights from Washington, D.C. (WAS) to Idaho
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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — BOI
Nov 10 — Nov 171
Round-trip
1 adult, Economy
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Cheapest flights from Washington, D.C. to IdahoExplore the most affordable flight options available from Washington, D.C. to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 11, 2026.
Explore the most affordable flight options available from Washington, D.C. to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 11, 2026.
This Delta deal was found by Cheapflights users on 10/8. 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 10/318:13 am -
1 stop7h 21m
Sat 11/711:32 am -
1 stop6h 37m
Deal found 10/8![Delta logo]()
$213
This Delta deal was found by Cheapflights users on 10/8. 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 10/317:21 am -
1 stop8h 13m
Sat 11/71:40 pm -
1 stop9h 10m
Deal found 10/8![Delta logo]()
$213
This American Airlines deal was found by Cheapflights users on 10/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/75:54 am -
1 stop8h 43m
Mon 11/91:24 pm -
1 stop7h 05m
Deal found 10/6![American Airlines logo]()
$213
This Southwest deal was found by Cheapflights users on 10/8. 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 11/113:45 pm -
2 stops8h 50m
Wed 11/183:30 pm -
1 stop7h 20m
Deal found 10/8![Southwest logo]()
$218
This Southwest deal was found by Cheapflights users on 10/8. 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 11/112:40 pm -
2 stops9h 55m
Wed 11/181:05 pm -
2 stops7h 05m
Deal found 10/8![Southwest logo]()
$223
This Southwest deal was found by Cheapflights users on 10/6. 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 10/276:20 am -
1 stop8h 55m
Wed 10/286:15 am -
2 stops9h 15m
Deal found 10/6![Southwest logo]()
$236
This United Airlines deal was found by Cheapflights users on 10/7. 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.
Mon 11/94:15 pm -
1 stop9h 18m
Wed 11/112:51 pm -
1 stop6h 24m
Deal found 10/7![United Airlines logo]()
$249
This Southwest deal was found by Cheapflights users on 10/6. 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 10/274:50 pm -
2 stops9h 05m
Wed 10/2812:55 pm -
2 stops9h 00m
Deal found 10/6![Southwest logo]()
$259
This Delta deal was found by Cheapflights users on 10/7. 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.
Mon 11/97:25 pm -
1 stop6h 34m
Wed 11/116:45 pm -
1 stop9h 15m
Deal found 10/7![Delta logo]()
$266
This Delta deal was found by Cheapflights users on 10/6. 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.
Thu 11/197:00 am -
1 stop11h 05m
Mon 11/2312:13 pm -
1 stop10h 07m
Deal found 10/6![Delta logo]()
$268
This Southwest deal was found by Cheapflights users on 10/7. 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.
Thu 11/53:50 pm -
1 stop10h 20m
Thu 11/1210:30 am -
2 stops9h 35m
Deal found 10/7![Southwest logo]()
$273
This Southwest deal was found by Cheapflights users on 10/7. 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.
Sat 12/199:15 pm -
1 stop14h 50m
Mon 1/112:25 pm -
2 stops13h 10m
Deal found 10/7![Southwest logo]()
$284
Best flights from Washington, D.C. to IdahoDiscover carefully curated flight deals from Washington, D.C. to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 11, 2026.
Discover carefully curated flight deals from Washington, D.C. to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 11, 2026.
This Delta deal was found by Cheapflights users on 10/6. 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.
Tue 10/277:05 am -
1 stop10h 15m
Wed 10/2810:34 am -
1 stop10h 15m
Deal found 10/6![Delta logo]()
$213
This Southwest deal was found by Cheapflights users on 10/6. 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 12/12:30 pm -
2 stops10h 45m
Thu 12/312:40 pm -
2 stops15h 00m
Deal found 10/6![Southwest logo]()
$336
This United Airlines deal was found by Cheapflights users on 10/10. 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 11/86:10 am -
1 stop7h 21m
Sun 11/157:10 pm -
1 stop8h 25m
Deal found 10/10![United Airlines logo]()
$371
This Alaska Airlines deal was found by Cheapflights users on 10/10. 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 10/249:38 am -
1 stop10h 39m
Wed 10/2812:58 pm -
1 stop9h 01m
Deal found 10/10![Alaska Airlines logo]()
$391
This Delta deal was found by Cheapflights users on 10/7. 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.
Wed 11/116:58 pm -
1 stop7h 01m
Wed 11/181:19 pm -
1 stop8h 28m
Deal found 10/7![Delta logo]()
$213
This Delta deal was found by Cheapflights users on 10/6. 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.
Sat 11/77:05 am -
1 stop10h 15m
Wed 11/111:41 pm -
1 stop9h 00m
Deal found 10/6![Delta logo]()
$213
This Delta deal was found by Cheapflights users on 10/6. 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.
Mon 11/97:25 pm -
1 stop6h 34m
Thu 11/1211:10 pm -
1 stop8h 08m
Deal found 10/6![Delta logo]()
$213
This Delta deal was found by Cheapflights users on 10/6. 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 11/117:25 pm -
1 stop6h 34m
Wed 11/185:30 am -
2 stops13h 22m
Deal found 10/6![Delta logo]()
$218
This Southwest deal was found by Cheapflights users on 10/9. 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.
Wed 12/95:20 pm -
1 stop7h 10m
Sun 12/138:30 pm -
1 stop7h 10m
Deal found 10/9![Southwest logo]()
$345
This Southwest deal was found by Cheapflights users on 10/6. 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.
Mon 11/96:05 am -
2 stops12h 55m
Thu 11/1210:15 am -
1 stop9h 15m
Deal found 10/6![Southwest logo]()
$346
This Delta deal was found by Cheapflights users on 10/7. 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.
Wed 10/288:13 am -
1 stop7h 21m
Sun 11/15:30 am -
1 stop6h 18m
Deal found 10/7![Delta logo]()
$292
This Southwest deal was found by Cheapflights users on 10/7. 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.
Sun 11/16:05 am -
2 stops12h 55m
Mon 11/25:35 pm -
1 stop10h 10m
Deal found 10/7![Southwest logo]()
$361
This United Airlines deal was found by Cheapflights users on 10/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/38:23 am -
1 stop9h 15m
Fri 11/62:35 pm -
1 stop6h 33m
Deal found 10/6![United Airlines logo]()
$445
This Alaska Airlines deal was found by Cheapflights users on 10/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/107:00 am -
1 stop10h 26m
Sat 12/194:56 pm -
1 stop10h 42m
Deal found 10/9![Alaska Airlines logo]()
$450
This Delta deal was found by Cheapflights users on 10/7. 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.
Sun 11/16:00 am -
1 stop9h 34m
Mon 11/26:49 pm -
1 stop8h 56m
Deal found 10/7![Delta logo]()
$310
This United Airlines deal was found by Cheapflights users on 10/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:10 am -
1 stop9h 18m
Mon 11/22:35 pm -
1 stop6h 38m
Deal found 10/6![United Airlines logo]()
$479
This Alaska Airlines deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/17:05 am -
1 stop10h 13m
Tue 11/31:53 pm -
1 stop13h 51m
Deal found 10/10![Alaska Airlines logo]()
$489
This Southwest deal was found by Cheapflights users on 10/6. 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 11/72:35 pm -
1 stop7h 55m
Wed 11/115:45 am -
2 stops11h 10m
Deal found 10/6![Southwest logo]()
$416
This Delta deal was found by Cheapflights users on 10/6. 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 10/289:50 am -
2 stops10h 43m
Sun 11/11:40 pm -
1 stop8h 51m
Deal found 10/6![Delta logo]()
$315
This United Airlines deal was found by Cheapflights users on 10/9. 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.
Fri 1/84:10 pm -
1 stop7h 00m
Tue 1/127:00 am -
1 stop6h 04m
Deal found 10/9![United Airlines logo]()
$499
This Delta deal was found by Cheapflights users on 10/7. 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.
Wed 10/286:00 am -
1 stop9h 34m
Sun 11/13:00 pm -
1 stop6h 44m
Deal found 10/7![Delta logo]()
$316
This Expedia deal was found by Cheapflights users on 10/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/35:11 pm -
1 stop24h 07m
Fri 11/63:55 pm -
1 stop22h 16m
Deal found 10/6![Alaska Airlines logo]()
$541
This United Airlines deal was found by Cheapflights users on 10/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/308:23 am -
1 stop9h 15m
Mon 11/22:35 pm -
1 stop6h 33m
Deal found 10/6![United Airlines logo]()
$499
This Delta deal was found by Cheapflights users on 10/9. 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 12/117:20 pm -
1 stop6h 50m
Wed 12/161:47 pm -
1 stop9h 20m
Deal found 10/9![Delta logo]()
$321
This Southwest deal was found by Cheapflights users on 10/9. 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.
Thu 12/242:40 pm -
2 stops9h 50m
Mon 12/285:05 am -
2 stops10h 55m
Deal found 10/9![Southwest logo]()
$470
This United Airlines deal was found by Cheapflights users on 10/10. 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.
Mon 1/46:45 am -
1 stop8h 43m
Sat 1/92:30 pm -
1 stop6h 56m
Deal found 10/10![United Airlines logo]()
$499
This Delta deal was found by Cheapflights users on 10/9. 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 12/114:25 pm -
1 stop9h 27m
Wed 12/161:47 pm -
1 stop6h 54m
Deal found 10/9![Delta logo]()
$321
This Alaska Airlines deal was found by Cheapflights users on 10/7. 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.
Thu 10/227:02 am -
1 stop30h 04m
Mon 10/2611:48 am -
1 stop15h 32m
Deal found 10/7![Alaska Airlines logo]()
$599
This United Airlines deal was found by Cheapflights users on 10/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/46:45 am -
1 stop8h 43m
Thu 1/77:00 am -
1 stop8h 10m
Deal found 10/6![United Airlines logo]()
$500
This Alaska Airlines deal was found by Cheapflights users on 10/6. 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.
Fri 11/65:17 pm -
1 stop24h 01m
Sun 11/81:53 pm -
1 stop13h 51m
Deal found 10/6![Alaska Airlines logo]()
$601
Last-minute flights from Washington, D.C. to IdahoDiscover last-minute flight deals from Washington, D.C. to Idaho. Data last updated October 11, 2026 and is based on user searches.
Discover last-minute flight deals from Washington, D.C. to Idaho. Data last updated October 11, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 10/6. 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 10/276:20 am -
1 stop8h 55m
Wed 10/286:15 am -
2 stops9h 15m
Deal found 10/6![Southwest logo]()
$236
This Southwest deal was found by Cheapflights users on 10/6. 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 10/274:50 pm -
2 stops9h 05m
Wed 10/2812:55 pm -
2 stops9h 00m
Deal found 10/6![Southwest logo]()
$259
This Delta deal was found by Cheapflights users on 10/8. 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 10/318:13 am -
1 stop7h 21m
Sat 11/711:32 am -
1 stop6h 37m
Deal found 10/8![Delta logo]()
$213
This Delta deal was found by Cheapflights users on 10/8. 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 10/317:21 am -
1 stop8h 13m
Sat 11/71:40 pm -
1 stop9h 10m
Deal found 10/8![Delta logo]()
$213
This Southwest deal was found by Cheapflights users on 10/7. 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.
Thu 11/53:50 pm -
1 stop10h 20m
Thu 11/1210:30 am -
2 stops9h 35m
Deal found 10/7![Southwest logo]()
$273
This American Airlines deal was found by Cheapflights users on 10/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/75:54 am -
1 stop8h 43m
Wed 11/111:24 pm -
1 stop8h 31m
Deal found 10/6![American Airlines logo]()
$213
This United Airlines deal was found by Cheapflights users on 10/7. 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.
Mon 11/94:15 pm -
1 stop9h 18m
Wed 11/112:51 pm -
1 stop6h 24m
Deal found 10/7![United Airlines logo]()
$249
This Delta deal was found by Cheapflights users on 10/7. 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.
Mon 11/97:25 pm -
1 stop6h 34m
Wed 11/116:45 pm -
1 stop9h 15m
Deal found 10/7![Delta logo]()
$266
This Southwest deal was found by Cheapflights users on 10/8. 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 11/113:45 pm -
2 stops8h 50m
Wed 11/183:30 pm -
1 stop7h 20m
Deal found 10/8![Southwest logo]()
$218
This Southwest deal was found by Cheapflights users on 10/8. 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 11/112:40 pm -
2 stops9h 55m
Wed 11/181:05 pm -
2 stops7h 05m
Deal found 10/8![Southwest logo]()
$223
This Delta deal was found by Cheapflights users on 10/6. 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.
Thu 11/197:00 am -
1 stop11h 05m
Mon 11/2312:13 pm -
1 stop10h 07m
Deal found 10/6![Delta logo]()
$268
This United Airlines deal was found by Cheapflights users on 10/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:10 am -
1 stop9h 35m
Mon 11/232:51 pm -
1 stop6h 24m
Deal found 10/6![United Airlines logo]()
$286
One-way flights from Washington, D.C. to IdahoSearch for one-way flight options from Washington, D.C. to Idaho. Find affordable one-way fares based on user searches. Data last updated October 11, 2026.
Search for one-way flight options from Washington, D.C. to Idaho. Find affordable one-way fares based on user searches. Data last updated October 11, 2026.
This Delta deal was found by Cheapflights users on 10/8. 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 11/46:13 am -
1 stop6h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Delta logo]()
$107
This Southwest deal was found by Cheapflights users on 10/7. 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 11/27:45 pm -
1 stop7h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Southwest logo]()
$107
This American Airlines deal was found by Cheapflights users on 10/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:00 am -
1 stop8h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![American Airlines logo]()
$107
This Kiwi.com deal was found by Cheapflights users on 10/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/412:31 pm -
2 stops27h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Frontier logo]()
$111
This Southwest deal was found by Cheapflights users on 10/8. 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 11/43:45 pm -
2 stops8h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Southwest logo]()
$112
This Southwest deal was found by Cheapflights users on 10/7. 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 11/44:00 pm -
2 stops8h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Southwest logo]()
$112
This United Airlines deal was found by Cheapflights users on 10/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:11 am -
1 stop7h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![United Airlines logo]()
$125
This Delta deal was found by Cheapflights users on 10/6. 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 10/306:13 am -
1 stop8h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Delta logo]()
$134
This Delta deal was found by Cheapflights users on 10/6. 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 10/307:00 am -
1 stop8h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Delta logo]()
$134
This United Airlines deal was found by Cheapflights users on 10/8. 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.
Fri 11/63:30 pm -
1 stop9h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![United Airlines logo]()
$134
This Southwest deal was found by Cheapflights users on 10/6. 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.
Wed 10/283:55 pm -
2 stops10h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Southwest logo]()
$135
This United Airlines deal was found by Cheapflights users on 10/7. 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.
Mon 11/212:34 pm -
2 stops12h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![United Airlines logo]()
$139
Find flight deals from Washington, D.C. to Idaho
Keep the following information in mind while searching for Washington, D.C. to Idaho flight deals. Data was last updated October 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $213 (Delta) |
One-way from | $107 (Delta) |
Popular in | December |
Cheapest in | May |
Average price | $372 |
Cheapflights Fare Finder
Customize your flight search to find flights from Washington, D.C. to Idaho 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 October 11, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Idaho 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
Sat 11/7
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
$107
BaltimoreBoise
BWI Baltimore/Washington - BOI Boise Air Term. Gowen Fld
BWIBOI
Baltimore/Washington
Sat 1/30
6:20 am-1:15 pm
1 stop8h 55m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$107
Washington, D.C.Boise
IAD Washington, D.C. Dulles Intl - BOI Boise Air Term. Gowen Fld
IADBOI
Washington, D.C. Dulles Intl
Thu 11/19
7:00 am-4:05 pm
1 stop11h 05m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$107
BaltimoreBoise
BWI Baltimore/Washington - BOI Boise Air Term. Gowen Fld
BWIBOI
Baltimore/Washington
Sat 11/14
7:01 am-1:53 pm
1 stop8h 52m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$107
Washington, D.C.Boise
DCA Washington, D.C. Reagan-National - BOI Boise Air Term. Gowen Fld
DCABOI
Washington, D.C. Reagan-National
Sat 12/5
6:00 am-1:17 pm
1 stop9h 17m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$107
BaltimoreBoise
BWI Baltimore/Washington - BOI Boise Air Term. Gowen Fld
BWIBOI
Baltimore/Washington
Wed 11/4
3:45 pm-10:35 pm
2 stops8h 50m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$112
Washington, D.C.Boise
DCA Washington, D.C. Reagan-National - BOI Boise Air Term. Gowen Fld
DCABOI
Washington, D.C. Reagan-National
Sat 12/5
12:15 pm-9:35 pm
2 stops11h 20m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$112
Washington, D.C.Boise
DCA Washington, D.C. Reagan-National - BOI Boise Air Term. Gowen Fld
DCABOI
Washington, D.C. Reagan-National
Wed 11/4
4:00 pm-10:35 pm
2 stops8h 35m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$112
Washington, D.C.Boise
IAD Washington, D.C. Dulles Intl - BOI Boise Air Term. Gowen Fld
IADBOI
Washington, D.C. Dulles Intl
Thu 10/29
9:25 am-4:42 pm
1 stop9h 17m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$125
Washington, D.C.Boise
IAD Washington, D.C. Dulles Intl - BOI Boise Air Term. Gowen Fld
IADBOI
Washington, D.C. Dulles Intl
Wed 11/4
9:25 am-4:42 pm
1 stop9h 17m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$125
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Washington, D.C. to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from Washington, D.C. with our price prediction graph.
IAD-BOI
BWI-BOI
DCA-BOI
BWI-IDA
DCA-IDA
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 Idaho
WAS-USID
IAD-BOI
BWI-BOI
DCA-BOI
BWI-IDA
What is the cheapest month to book a flight from Washington, D.C. to Idaho?
Currently, May is the cheapest month in which you can book a flight from Washington, D.C. to Idaho (average of $389). Flying from Washington, D.C. to Idaho in December is currently the most expensive (average of $584). 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 far ahead should I book a flight from Washington, D.C. to Idaho?
The best time to book flights from Washington, D.C. to Idaho is 27 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Reviews of airlines servicing Idaho
Get insights into the airlines that provide service to Idaho. 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 Idaho. Reviews last updated October 11, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Washington, D.C. to Idaho. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Food
7.0
Entertainment
7.4
Overall
7.9
Crew
8.6
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Comfort
8.0
Food
7.0
Entertainment
7.4
Overall
7.9
Crew
8.6
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Comfort
8.0
Food
7.0
Entertainment
7.4
Overall
7.9
Crew
8.6
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Comfort
8.0
Food
7.0
Entertainment
7.4
Overall
7.9
Crew
8.6
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Comfort
8.0
Food
7.0
Entertainment
7.4
Overall
7.9
Crew
8.6
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Related info for your journey
Find useful and relevant information for your journey from Washington, D.C. to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Washington, D.C. to Idaho
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Complete your trip
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Washington, D.C. and Idaho flights
Browse other Washington, D.C. and Idaho flight options. Last updated on October 11, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Washington, D.C. to Idaho flights
Consider these flights traveling from Washington, D.C. to Idaho.
Top 5 airlines flying from Washington, D.C. to Idaho
Discover the top 5 airlines that operate flights from Washington, D.C. to Idaho. 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 October 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$179 | Average$506 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$200 | Average$410 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$255 | Average$573 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$262 | Average$613 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$342 | Average$508 | FlexibilityNo cancel fee | On-time63% |