$93+ Cheap flights from Reagan-National (DCA) to Idaho
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — BOI
May 26 — Jun 21
Round-trip
1 adult, Economy
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Cheapest flights from Reagan-National to IdahoExplore the most affordable flight options available from Reagan-National to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 26, 2026.
Explore the most affordable flight options available from Reagan-National to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 26, 2026.
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/194:40 pm
DCA
- GEG
1 stop10h 04m
Delta
Wed 9/95:20 am
GEG
- DCA
1 stop7h 20m
Delta
Deal found 4/22![Delta logo]()
$197
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/264:40 pm
DCA
- BOI
1 stop9h 15m
Delta
Tue 6/22:23 pm
BOI
- DCA
1 stop7h 04m
Delta
Deal found 4/23![Delta logo]()
$197
This Delta deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/192:45 pm
DCA
- GEG
2 stops11h 21m
Delta
Tue 5/2610:40 pm
GEG
- DCA
1 stop7h 36m
Delta
Deal found 4/21![Delta logo]()
$202
This Delta deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:00 am
DCA
- BOI
2 stops10h 03m
Delta
Tue 8/256:00 am
BOI
- DCA
1 stop7h 40m
Delta
Deal found 4/21![Delta logo]()
$202
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/274:00 pm
DCA
- BOI
1 stop8h 28m
Delta
Thu 5/281:53 pm
BOI
- DCA
1 stop7h 51m
Delta
Deal found 4/23![Delta logo]()
$203
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/194:40 pm
DCA
- GEG
1 stop10h 04m
Delta
Sat 9/125:20 am
GEG
- DCA
1 stop7h 20m
Delta
Deal found 4/22![Delta logo]()
$208
This Delta deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/244:40 pm
DCA
- BOI
1 stop9h 19m
Delta
Sat 8/295:40 am
BOI
- DCA
1 stop6h 17m
Delta
Deal found 4/21![Delta logo]()
$209
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:00 am
DCA
- GEG
2 stops10h 07m
Delta
Wed 9/95:20 am
GEG
- DCA
1 stop7h 20m
Delta
Deal found 4/22![Delta logo]()
$213
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2712:27 pm
DCA
- BOI
2 stops12h 01m
Delta
Mon 6/111:39 pm
BOI
- DCA
2 stops9h 53m
Delta
Deal found 4/23![Delta logo]()
$214
This American Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/295:00 am
DCA
- GEG
1 stop10h 02m
American Airlines
Sat 9/51:19 pm
GEG
- DCA
1 stop7h 40m
American Airlines
Deal found 4/22![American Airlines logo]()
$219
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/274:00 pm
DCA
- BOI
1 stop8h 28m
Delta
Fri 5/291:53 pm
BOI
- DCA
1 stop6h 51m
Delta
Deal found 4/23![Delta logo]()
$219
This American Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/27:41 am
DCA
- BOI
1 stop8h 39m
American Airlines
Sat 10/242:57 pm
BOI
- DCA
1 stop6h 38m
American Airlines
Deal found 4/21![American Airlines logo]()
$220
Best flights from Reagan-National to IdahoDiscover carefully curated flight deals from Reagan-National to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 26, 2026.
Discover carefully curated flight deals from Reagan-National to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 26, 2026.
This Delta deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/192:45 pm
DCA
- GEG
2 stops11h 21m
Delta
Tue 5/2610:40 pm
GEG
- DCA
1 stop7h 36m
Delta
Deal found 4/21![Delta logo]()
$202
This United Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2111:30 am
DCA
- SUN
1 stop9h 20m
United Airlines
Tue 8/257:00 am
SUN
- DCA
1 stop6h 11m
United Airlines
Deal found 4/21![United Airlines logo]()
$369
This Southwest deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/15:00 pm
DCA
- BOI
2 stops9h 45m
Southwest
Tue 10/2012:25 pm
BOI
- DCA
2 stops9h 30m
Southwest
Deal found 4/21![Southwest logo]()
$458
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/286:05 am
DCA
- GEG
2 stops8h 56m
Delta
Tue 6/210:40 pm
GEG
- DCA
1 stop7h 31m
Delta
Deal found 4/22![Delta logo]()
$253
This Delta deal was found by Cheapflights users on 4/25. 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.
Wed 7/228:00 am
DCA
- BOI
1 stop6h 53m
Delta
Wed 7/292:50 pm
BOI
- DCA
1 stop7h 06m
Delta
Deal found 4/25![Delta logo]()
$263
This Alaska Airlines deal was found by Cheapflights users on 4/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/175:00 pm
DCA
- SUN
1 stop18h 38m
Alaska Airlines
Fri 8/2110:21 am
SUN
- DCA
1 stop9h 38m
Alaska Airlines
Deal found 4/25![Alaska Airlines logo]()
$614
This Delta deal was found by Cheapflights users on 4/24. 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 5/2712:27 pm
DCA
- BOI
2 stops11h 17m
Delta
Mon 6/111:39 pm
BOI
- DCA
1 stop7h 32m
Delta
Deal found 4/24![Delta logo]()
$268
This American Airlines deal was found by Cheapflights users on 4/24. 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.
Thu 6/115:00 am
DCA
- IDA
1 stop9h 14m
American Airlines
Sat 6/132:14 pm
IDA
- DCA
1 stop7h 45m
American Airlines
Deal found 4/24![American Airlines logo]()
$657
This Delta deal was found by Cheapflights users on 4/25. 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.
Wed 7/86:59 am
DCA
- GEG
1 stop7h 41m
Delta
Tue 7/147:08 pm
GEG
- DCA
2 stops10h 32m
Delta
Deal found 4/25![Delta logo]()
$280
This Delta deal was found by Cheapflights users on 4/25. 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.
Thu 7/96:59 am
DCA
- GEG
1 stop7h 41m
Delta
Wed 7/152:26 pm
GEG
- DCA
1 stop6h 30m
Delta
Deal found 4/25![Delta logo]()
$292
This Delta deal was found by Cheapflights users on 4/25. 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.
Sun 7/126:00 am
DCA
- BOI
1 stop8h 53m
Delta
Sat 7/182:04 pm
BOI
- DCA
1 stop7h 48m
Delta
Deal found 4/25![Delta logo]()
$297
This United Airlines deal was found by Cheapflights users on 4/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/61:00 pm
DCA
- SUN
1 stop7h 58m
United Airlines
Tue 7/78:15 am
SUN
- DCA
1 stop8h 55m
United Airlines
Deal found 4/26![United Airlines logo]()
$505
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/286:05 am
DCA
- BOI
2 stops7h 51m
Delta
Wed 6/39:18 pm
BOI
- DCA
2 stops9h 19m
Delta
Deal found 4/23![Delta logo]()
$313
This United Airlines deal was found by Cheapflights users on 4/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/611:57 am
DCA
- SUN
1 stop9h 01m
United Airlines
Thu 7/98:15 am
SUN
- DCA
1 stop8h 55m
United Airlines
Deal found 4/26![United Airlines logo]()
$505
This United Airlines deal was found by Cheapflights users on 4/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/41:00 pm
DCA
- SUN
1 stop7h 58m
United Airlines
Tue 7/78:15 am
SUN
- DCA
1 stop8h 55m
United Airlines
Deal found 4/26![United Airlines logo]()
$505
This Delta deal was found by Cheapflights users on 4/25. 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.
Thu 6/44:40 pm
DCA
- GEG
1 stop10h 18m
Delta
Mon 6/85:10 pm
GEG
- DCA
2 stops12h 27m
Delta
Deal found 4/25![Delta logo]()
$314
This United Airlines deal was found by Cheapflights users on 4/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/41:00 pm
DCA
- SUN
1 stop7h 58m
United Airlines
Wed 7/88:15 am
SUN
- DCA
1 stop8h 55m
United Airlines
Deal found 4/26![United Airlines logo]()
$510
This Alaska Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/75:19 pm
DCA
- IDA
1 stop21h 58m
Alaska Airlines
Sat 6/134:14 pm
IDA
- DCA
2 stops15h 59m
Alaska Airlines
Deal found 4/22![Alaska Airlines logo]()
$698
This Delta deal was found by Cheapflights users on 4/25. 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 6/56:05 am
DCA
- BOI
2 stops7h 51m
Delta
Sun 6/711:45 pm
BOI
- DCA
1 stop7h 30m
Delta
Deal found 4/25![Delta logo]()
$336
This Alaska Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/116:59 pm
DCA
- JAC
1 stop20h 32m
Alaska Airlines
Sat 7/253:47 pm
JAC
- DCA
1 stop22h 13m
Alaska Airlines
Deal found 4/23![Alaska Airlines logo]()
$720
This United Airlines deal was found by Cheapflights users on 4/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/51:00 pm
DCA
- SUN
1 stop7h 58m
United Airlines
Thu 7/98:15 am
SUN
- DCA
1 stop8h 55m
United Airlines
Deal found 4/26![United Airlines logo]()
$541
This Delta deal was found by Cheapflights users on 4/25. 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.
Mon 5/256:05 am
DCA
- BOI
2 stops7h 51m
Delta
Mon 6/19:18 pm
BOI
- DCA
2 stops9h 19m
Delta
Deal found 4/25![Delta logo]()
$341
This American Airlines deal was found by Cheapflights users on 4/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2211:59 am
DCA
- JAC
1 stop9h 43m
American Airlines
Sun 7/264:19 pm
JAC
- DCA
1 stop14h 44m
American Airlines
Deal found 4/26![American Airlines logo]()
$855
This Delta deal was found by Cheapflights users on 4/26. 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 5/305:59 pm
DCA
- IDA
1 stop6h 43m
Delta
Fri 6/56:00 am
IDA
- DCA
2 stops10h 40m
Delta
Deal found 4/26![Delta logo]()
$354
This Alaska Airlines deal was found by Cheapflights users on 4/24. 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 7/118:59 am
DCA
- JAC
1 stop32h 08m
Alaska Airlines
Sat 7/182:11 pm
JAC
- DCA
2 stops23h 49m
Alaska Airlines
Deal found 4/24![Alaska Airlines logo]()
$774
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/106:00 am
DCA
- GEG
2 stops10h 18m
Delta
Mon 6/1510:48 pm
GEG
- DCA
1 stop9h 29m
Delta
Deal found 4/22![Delta logo]()
$369
This United Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/256:00 am
DCA
- JAC
2 stops11h 25m
United Airlines
Fri 6/127:30 am
JAC
- DCA
1 stop8h 42m
United Airlines
Deal found 4/23![United Airlines logo]()
$670
This Alaska Airlines deal was found by Cheapflights users on 4/26. 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 8/145:16 pm
DCA
- JAC
2 stops23h 51m
Alaska Airlines
Mon 8/171:11 pm
JAC
- DCA
2 stops28h 49m
Alaska Airlines
Deal found 4/26![Alaska Airlines logo]()
$893
This United Airlines deal was found by Cheapflights users on 4/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/254:30 pm
DCA
- WYS
2 stops23h 02m
United Airlines
Fri 5/295:45 pm
WYS
- DCA
2 stops27h 09m
United Airlines
Deal found 4/26![United Airlines logo]()
$702
This Delta deal was found by Cheapflights users on 4/24. 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 6/207:45 am
DCA
- BOI
2 stops10h 32m
Delta
Tue 6/232:50 pm
BOI
- DCA
1 stop6h 36m
Delta
Deal found 4/24![Delta logo]()
$404
Last-minute flights from Reagan-National to IdahoDiscover last-minute flight deals from Reagan-National to Idaho. Data last updated April 26, 2026 and is based on user searches.
Discover last-minute flight deals from Reagan-National to Idaho. Data last updated April 26, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/192:45 pm
DCA
- GEG
2 stops11h 21m
Delta
Tue 5/2610:40 pm
GEG
- DCA
1 stop7h 36m
Delta
Deal found 4/21![Delta logo]()
$202
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/234:40 pm
DCA
- GEG
1 stop10h 19m
Delta
Sat 5/305:00 am
GEG
- DCA
1 stop7h 30m
Delta
Deal found 4/23![Delta logo]()
$259
This Frontier deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/247:00 am
DCA
- BOI
1 stop7h 30m
Frontier
Thu 5/281:25 pm
BOI
- DCA
1 stop6h 33m
Frontier
Deal found 4/22![Frontier logo]()
$225
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/244:40 pm
DCA
- GEG
1 stop10h 19m
Delta
Sat 5/305:00 am
GEG
- DCA
1 stop7h 30m
Delta
Deal found 4/22![Delta logo]()
$247
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/264:40 pm
DCA
- BOI
1 stop9h 15m
Delta
Tue 6/22:23 pm
BOI
- DCA
1 stop7h 04m
Delta
Deal found 4/23![Delta logo]()
$197
This Expedia deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/267:00 am
DCA
- BOI
1 stop7h 30m
Frontier
Tue 6/21:25 pm
BOI
- DCA
1 stop6h 33m
Frontier
Deal found 4/23![Frontier logo]()
$250
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/274:00 pm
DCA
- BOI
1 stop8h 28m
Delta
Thu 5/281:53 pm
BOI
- DCA
1 stop7h 51m
Delta
Deal found 4/23![Delta logo]()
$203
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2712:27 pm
DCA
- BOI
2 stops12h 01m
Delta
Mon 6/111:39 pm
BOI
- DCA
2 stops9h 53m
Delta
Deal found 4/23![Delta logo]()
$214
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/274:00 pm
DCA
- BOI
1 stop8h 28m
Delta
Fri 5/291:53 pm
BOI
- DCA
1 stop6h 51m
Delta
Deal found 4/23![Delta logo]()
$219
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/275:28 pm
DCA
- GEG
2 stops9h 07m
Delta
Fri 5/2912:27 pm
GEG
- DCA
1 stop8h 17m
Delta
Deal found 4/23![Delta logo]()
$229
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/286:05 am
DCA
- GEG
2 stops8h 56m
Delta
Tue 6/210:40 pm
GEG
- DCA
1 stop7h 31m
Delta
Deal found 4/22![Delta logo]()
$253
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:59 am
DCA
- GEG
1 stop7h 18m
Delta
Mon 6/15:00 am
GEG
- DCA
1 stop7h 28m
Delta
Deal found 4/23![Delta logo]()
$235
One-way flights from Reagan-National to IdahoSearch for one-way flight options from Reagan-National to Idaho. Find affordable one-way fares based on user searches. Data last updated April 26, 2026.
Search for one-way flight options from Reagan-National to Idaho. Find affordable one-way fares based on user searches. Data last updated April 26, 2026.
This American Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/151:52 pm
DCA
- GEG
1 stop9h 55m
American Airlines
Deal found 4/23![American Airlines logo]()
$93
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/264:40 pm
DCA
- GEG
1 stop7h 33m
Delta
Deal found 4/23![Delta logo]()
$99
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/264:40 pm
DCA
- BOI
1 stop9h 15m
Delta
Deal found 4/23![Delta logo]()
$99
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:00 am
DCA
- GEG
2 stops10h 18m
Delta
Deal found 4/22![Delta logo]()
$104
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/21:43 pm
DCA
- BOI
2 stops10h 01m
Delta
Deal found 4/22![Delta logo]()
$104
This American Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/305:00 am
DCA
- GEG
1 stop10h 01m
American Airlines
Deal found 4/21![American Airlines logo]()
$110
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/306:00 am
DCA
- GEG
2 stops10h 11m
Delta
Deal found 4/23![Delta logo]()
$115
This Frontier deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/297:00 am
DCA
- GEG
1 stop7h 33m
Frontier
Deal found 4/21![Frontier logo]()
$125
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/156:59 am
DCA
- GEG
1 stop7h 18m
Delta
Deal found 4/23![Delta logo]()
$126
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/55:28 pm
DCA
- GEG
2 stops8h 38m
Delta
Deal found 4/22![Delta logo]()
$131
This Delta deal was found by Cheapflights users on 4/25. 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.
Wed 6/37:45 am
DCA
- BOI
1 stop7h 33m
Delta
Deal found 4/25![Delta logo]()
$132
This Delta deal was found by Cheapflights users on 4/24. 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 7/89:39 am
DCA
- BOI
2 stops10h 12m
Delta
Deal found 4/24![Delta logo]()
$137
Find flight deals from Reagan-National to Idaho
Keep the following information in mind while searching for Reagan-National to Idaho flight deals. Data was last updated April 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $197 (Delta) |
One-way from | $93 (American Airlines) |
Popular in | December |
Cheapest in | April |
Average price | $276 |
Cheapflights Fare Finder
Customize your flight search to find flights from Reagan-National 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 2,558,603 searches. Data last updated April 26, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Idaho that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Washington, D.C.Spokane
DCA - GEG
DCAGEG
Washington, D.C. Reagan-National
Tue 5/19
2:45 pm-11:06 pm
2 stops11h 21m
Spokane
Tue 5/26
10:40 pm-9:16 am
1 stop7h 36m
$202
Washington, D.C.Spokane
DCA - GEG
DCAGEG
Washington, D.C. Reagan-National
Thu 5/28
6:05 am-12:01 pm
2 stops8h 56m
Spokane
Tue 6/2
10:40 pm-9:11 am
1 stop7h 31m
$253
Quickest round-trip
Washington, D.C.Boise
DCA - BOI
DCABOI
Washington, D.C. Reagan-National
Wed 7/22
8:00 am-12:53 pm
1 stop6h 53m
Boise Air Term. Gowen Fld
Wed 7/29
2:50 pm-11:56 pm
1 stop7h 06m
$263
Washington, D.C.Boise
DCA - BOI
DCABOI
Washington, D.C. Reagan-National
Wed 5/27
12:27 pm-9:44 pm
2 stops11h 17m
Boise Air Term. Gowen Fld
Mon 6/1
11:39 pm-9:11 am
1 stop7h 32m
$268
Washington, D.C.Spokane
DCA - GEG
DCAGEG
Washington, D.C. Reagan-National
Wed 7/8
6:59 am-11:40 am
1 stop7h 41m
Spokane
Tue 7/14
7:08 pm-8:40 am
2 stops10h 32m
$280
Washington, D.C.Spokane
DCA - GEG
DCAGEG
Washington, D.C. Reagan-National
Thu 7/9
6:59 am-11:40 am
1 stop7h 41m
Spokane
Wed 7/15
2:26 pm-11:56 pm
1 stop6h 30m
$292
Washington, D.C.Boise
DCA - BOI
DCABOI
Washington, D.C. Reagan-National
Sun 7/12
6:00 am-12:53 pm
1 stop8h 53m
Boise Air Term. Gowen Fld
Sat 7/18
2:04 pm-11:52 pm
1 stop7h 48m
$297
Washington, D.C.Boise
DCA - BOI
DCABOI
Washington, D.C. Reagan-National
Thu 5/28
6:05 am-11:56 am
2 stops7h 51m
Boise Air Term. Gowen Fld
Wed 6/3
9:18 pm-8:37 am
2 stops9h 19m
$313
Washington, D.C.Spokane
DCA - GEG
DCAGEG
Washington, D.C. Reagan-National
Thu 6/4
4:40 pm-11:58 pm
1 stop10h 18m
Spokane
Mon 6/8
5:10 pm-8:37 am
2 stops12h 27m
$314
Washington, D.C.Boise
DCA - BOI
DCABOI
Washington, D.C. Reagan-National
Fri 6/5
6:05 am-11:56 am
2 stops7h 51m
Boise Air Term. Gowen Fld
Sun 6/7
11:45 pm-9:15 am
1 stop7h 30m
$336
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Reagan-National to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from Reagan-National with our price prediction graph.
DCA-BOI
DCA-GEG
DCA-SUN
DCA-JAC
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. Reagan-National Airport to Idaho
DCA-USID
DCA-BOI
DCA-GEG
DCA-SUN
DCA-JAC
What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Idaho?
Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Idaho (average of $135). Flying from Washington, D.C. Reagan-National Airport to Idaho in March is currently the most expensive (average of $464). 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. Reagan-National Airport to Idaho?
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 April 26, 2026.
Read through reviews of airlines operating flights from Washington, D.C. Reagan-National Airport to Idaho, such as Southwest,Alaska Airlines, andDelta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Related info for your journey
Find useful and relevant information for your journey from Reagan-National 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 Reagan-National to Idaho
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Complete your trip
Complete your trip to Idaho by adding a car rental and/or hotel reservation to your travel itinerary.
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Reagan-National and Idaho flights
Browse other Reagan-National and Idaho flight options. Last updated on April 26, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Reagan-National to Idaho flights
Consider these flights traveling from Reagan-National to Idaho.
Top 5 airlines flying from Reagan-National to Idaho
Discover the top 5 airlines that operate flights from Reagan-National 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 2,558,603 searches. Data last updated April 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$150 | Average$319 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$221 | Average$599 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$256 | Average$454 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$271 | Average$474 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$388 | Average$458 | FlexibilityNo cancel fee | On-time75% |