$132+ Cheap flights from Baltimore (BWI) 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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — BOI
Jun 21 — Jun 281
Round-trip
1 adult, Economy
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Cheapest flights from Baltimore to IdahoExplore the most affordable flight options available from Baltimore to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 22, 2026.
Explore the most affordable flight options available from Baltimore to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 22, 2026.
This Delta deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 7/46:19 am
BWI
- BOI
1 stop9h 32m
Delta
Tue 7/146:42 pm
BOI
- BWI
1 stop9h 18m
Delta
Deal found 5/18![Delta logo]()
$263
This Delta deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 7/146:20 am
BWI
- BOI
1 stop6h 37m
Delta
Wed 7/2911:42 pm
BOI
- BWI
1 stop9h 05m
Delta
Deal found 5/20![Delta logo]()
$293
This Delta deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/186:00 am
BWI
- BOI
1 stop8h 53m
Delta
Tue 7/2111:42 pm
BOI
- BWI
1 stop7h 42m
Delta
Deal found 5/17![Delta logo]()
$303
This Delta deal was found by Cheapflights users on 5/21. 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.
Fri 7/246:20 am
BWI
- BOI
1 stop9h 24m
Delta
Mon 7/2711:42 pm
BOI
- BWI
1 stop7h 42m
Delta
Deal found 5/21![Delta logo]()
$306
This Delta deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 8/247:00 am
BWI
- GEG
1 stop7h 28m
Delta
Tue 9/17:07 pm
GEG
- BWI
1 stop7h 56m
Delta
Deal found 5/18![Delta logo]()
$309
This American Airlines deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 7/45:44 am
BWI
- BOI
2 stops11h 03m
American Airlines
Tue 7/213:10 pm
BOI
- BWI
1 stop7h 23m
American Airlines
Deal found 5/20![American Airlines logo]()
$310
This Delta deal was found by Cheapflights users on 5/21. 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.
Thu 5/287:00 am
BWI
- BOI
1 stop7h 43m
Delta
Fri 5/296:41 pm
BOI
- BWI
1 stop9h 04m
Delta
Deal found 5/21![Delta logo]()
$311
This Southwest deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” 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 5/272:50 pm
BWI
- GEG
2 stops11h 05m
Southwest
Thu 5/282:50 pm
GEG
- BWI
1 stop6h 35m
Southwest
Deal found 5/19![Southwest logo]()
$314
This Delta deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 8/72:18 pm
BWI
- GEG
1 stop10h 12m
Delta
Thu 8/137:15 pm
GEG
- BWI
1 stop8h 05m
Delta
Deal found 5/18![Delta logo]()
$318
This Delta deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” 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 7/86:20 am
BWI
- BOI
1 stop9h 24m
Delta
Wed 7/156:42 pm
BOI
- BWI
1 stop9h 18m
Delta
Deal found 5/19![Delta logo]()
$318
This Southwest deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/245:15 pm
BWI
- GEG
1 stop8h 45m
Southwest
Thu 5/285:00 am
GEG
- BWI
2 stops15h 55m
Southwest
Deal found 5/17![Southwest logo]()
$320
This American Airlines deal was found by Cheapflights users on 5/22. 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.
Tue 8/257:06 am
BWI
- GEG
1 stop9h 13m
American Airlines
Tue 9/16:30 am
GEG
- BWI
2 stops12h 29m
American Airlines
Deal found 5/22![American Airlines logo]()
$321
Best flights from Baltimore to IdahoDiscover carefully curated flight deals from Baltimore to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 22, 2026.
Discover carefully curated flight deals from Baltimore to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 22, 2026.
This Delta deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 8/147:39 am
BWI
- BOI
1 stop6h 31m
Delta
Tue 8/186:44 pm
BOI
- BWI
1 stop9h 36m
Delta
Deal found 5/18![Delta logo]()
$306
This Alaska Airlines deal was found by Cheapflights users on 5/22. 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.
Tue 8/254:43 pm
BWI
- GEG
1 stop9h 28m
Alaska Airlines
Tue 9/15:12 am
GEG
- BWI
1 stop7h 28m
Alaska Airlines
Deal found 5/22![Alaska Airlines logo]()
$309
This Southwest deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/144:10 pm
BWI
- GEG
1 stop8h 50m
Southwest
Sun 8/161:00 pm
GEG
- BWI
1 stop14h 35m
Southwest
Deal found 5/17![Southwest logo]()
$356
This United Airlines deal was found by Cheapflights users on 5/21. 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.
Sun 7/127:00 am
BWI
- SUN
1 stop8h 16m
United Airlines
Sat 7/188:00 am
SUN
- BWI
2 stops14h 28m
United Airlines
Deal found 5/21![United Airlines logo]()
$430
This Sun Country Air deal was found by Cheapflights users on 5/21. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/610:49 am
BWI
- BOI
1 stop9h 21m
Sun Country Air
Sun 8/95:50 pm
BOI
- BWI
1 stop15h 34m
Sun Country Air
Deal found 5/21![Sun Country Air logo]()
$435
This Delta deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:19 am
BWI
- GEG
1 stop9h 48m
Delta
Wed 9/307:07 pm
GEG
- BWI
1 stop7h 56m
Delta
Deal found 5/18![Delta logo]()
$309
This Alaska Airlines deal was found by Cheapflights users on 5/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/254:43 pm
BWI
- GEG
1 stop9h 28m
Alaska Airlines
Wed 8/265:12 am
GEG
- BWI
1 stop7h 28m
Alaska Airlines
Deal found 5/21![Alaska Airlines logo]()
$323
This Delta deal was found by Cheapflights users on 5/21. 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.
Thu 5/287:00 am
BWI
- BOI
1 stop7h 43m
Delta
Fri 5/296:41 pm
BOI
- BWI
1 stop9h 04m
Delta
Deal found 5/21![Delta logo]()
$311
This Southwest deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 8/147:40 am
BWI
- BOI
2 stops10h 35m
Southwest
Tue 8/182:20 pm
BOI
- BWI
1 stop14h 10m
Southwest
Deal found 5/18![Southwest logo]()
$381
This Delta deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/277:10 pm
BWI
- BOI
1 stop6h 36m
Delta
Thu 8/611:35 pm
BOI
- BWI
1 stop7h 44m
Delta
Deal found 5/17![Delta logo]()
$325
This Alaska Airlines deal was found by Cheapflights users on 5/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:50 am
BWI
- BOI
1 stop9h 41m
Alaska Airlines
Mon 8/246:00 am
BOI
- BWI
1 stop7h 40m
Alaska Airlines
Deal found 5/21![Alaska Airlines logo]()
$391
This Delta deal was found by Cheapflights users on 5/21. 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.
Fri 7/105:40 am
BWI
- BOI
1 stop9h 13m
Delta
Sun 7/1211:42 pm
BOI
- BWI
1 stop7h 42m
Delta
Deal found 5/21![Delta logo]()
$349
This Southwest deal was found by Cheapflights users on 5/21. 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.
Sat 7/115:05 pm
BWI
- GEG
1 stop10h 00m
Southwest
Sat 7/183:15 pm
GEG
- BWI
1 stop11h 05m
Southwest
Deal found 5/21![Southwest logo]()
$442
This United Airlines deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/278:15 am
BWI
- SUN
1 stop7h 29m
United Airlines
Sat 10/312:29 pm
SUN
- BWI
1 stop6h 31m
United Airlines
Deal found 5/17![United Airlines logo]()
$501
This Alaska Airlines deal was found by Cheapflights users on 5/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/54:19 pm
BWI
- BOI
1 stop9h 29m
Alaska Airlines
Tue 8/115:57 am
BOI
- BWI
1 stop7h 19m
Alaska Airlines
Deal found 5/21![Alaska Airlines logo]()
$437
This Delta deal was found by Cheapflights users on 5/21. 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 7/66:19 am
BWI
- GEG
1 stop8h 21m
Delta
Mon 7/137:08 pm
GEG
- BWI
1 stop7h 52m
Delta
Deal found 5/21![Delta logo]()
$374
This Southwest deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 7/115:30 pm
BWI
- BOI
2 stops8h 55m
Southwest
Tue 7/215:30 am
BOI
- BWI
2 stops10h 25m
Southwest
Deal found 5/18![Southwest logo]()
$459
This United Airlines deal was found by Cheapflights users on 5/21. 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.
Sat 10/2412:10 pm
BWI
- SUN
2 stops11h 01m
United Airlines
Wed 10/282:29 pm
SUN
- BWI
1 stop6h 31m
United Airlines
Deal found 5/21![United Airlines logo]()
$506
This Delta deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” 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 8/297:39 am
BWI
- GEG
1 stop7h 33m
Delta
Sat 9/55:20 am
GEG
- BWI
2 stops10h 32m
Delta
Deal found 5/19![Delta logo]()
$396
This United Airlines deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 11/1410:45 am
BWI
- IDA
2 stops8h 37m
United Airlines
Wed 11/1810:45 am
IDA
- BWI
2 stops11h 53m
United Airlines
Deal found 5/18![United Airlines logo]()
$553
This Delta deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/205:00 pm
BWI
- BOI
1 stop7h 32m
Delta
Tue 7/282:50 pm
BOI
- BWI
1 stop6h 23m
Delta
Deal found 5/17![Delta logo]()
$400
This Alaska Airlines deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/297:03 am
BWI
- SUN
1 stop28h 35m
Alaska Airlines
Mon 8/37:43 pm
SUN
- BWI
1 stop8h 44m
Alaska Airlines
Deal found 5/20![Alaska Airlines logo]()
$582
This United Airlines deal was found by Cheapflights users on 5/21. 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.
Tue 11/106:17 am
BWI
- JAC
2 stops10h 55m
United Airlines
Wed 11/117:00 am
JAC
- BWI
2 stops8h 13m
United Airlines
Deal found 5/21![United Airlines logo]()
$583
This Delta deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 7/36:19 am
BWI
- BOI
1 stop6h 39m
Delta
Wed 7/811:42 pm
BOI
- BWI
1 stop7h 42m
Delta
Deal found 5/20![Delta logo]()
$438
This Alaska Airlines deal was found by Cheapflights users on 5/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/194:19 pm
BWI
- IDA
1 stop22h 47m
Alaska Airlines
Thu 7/304:14 pm
IDA
- BWI
1 stop21h 02m
Alaska Airlines
Deal found 5/21![Alaska Airlines logo]()
$635
This Delta deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:05 am
BWI
- GEG
1 stop9h 35m
Delta
Sat 8/225:14 pm
GEG
- BWI
1 stop10h 06m
Delta
Deal found 5/17![Delta logo]()
$439
This United Airlines deal was found by Cheapflights users on 5/21. 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.
Thu 6/117:00 am
BWI
- JAC
1 stop8h 48m
United Airlines
Thu 6/187:05 am
JAC
- BWI
1 stop6h 12m
United Airlines
Deal found 5/21![United Airlines logo]()
$674
This Delta deal was found by Cheapflights users on 5/21. 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.
Fri 7/317:10 pm
BWI
- GEG
1 stop6h 56m
Delta
Sun 8/97:15 pm
GEG
- BWI
1 stop8h 05m
Delta
Deal found 5/21![Delta logo]()
$439
This Alaska Airlines deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” 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 8/16:07 pm
BWI
- SUN
1 stop17h 31m
Alaska Airlines
Wed 8/1910:21 am
SUN
- BWI
1 stop18h 07m
Alaska Airlines
Deal found 5/19![Alaska Airlines logo]()
$643
This United Airlines deal was found by Cheapflights users on 5/21. 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.
Tue 6/306:15 am
BWI
- JAC
1 stop7h 20m
United Airlines
Wed 7/87:30 am
JAC
- BWI
1 stop8h 06m
United Airlines
Deal found 5/21![United Airlines logo]()
$686
Last-minute flights from Baltimore to IdahoDiscover last-minute flight deals from Baltimore to Idaho. Data last updated May 22, 2026 and is based on user searches.
Discover last-minute flight deals from Baltimore to Idaho. Data last updated May 22, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/247:00 am
BWI
- GEG
1 stop8h 01m
Delta
Fri 5/296:45 pm
GEG
- BWI
1 stop8h 00m
Delta
Deal found 5/17![Delta logo]()
$309
This Southwest deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/245:15 pm
BWI
- GEG
1 stop8h 45m
Southwest
Thu 5/285:00 am
GEG
- BWI
2 stops15h 55m
Southwest
Deal found 5/17![Southwest logo]()
$320
This Southwest deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” 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 5/272:50 pm
BWI
- GEG
2 stops11h 05m
Southwest
Thu 5/282:50 pm
GEG
- BWI
1 stop6h 35m
Southwest
Deal found 5/19![Southwest logo]()
$314
This Alaska Airlines deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/274:17 pm
BWI
- GEG
1 stop9h 49m
Alaska Airlines
Thu 5/285:00 am
GEG
- BWI
1 stop7h 17m
Alaska Airlines
Deal found 5/19![Alaska Airlines logo]()
$323
This Delta deal was found by Cheapflights users on 5/21. 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.
Thu 5/287:00 am
BWI
- BOI
1 stop7h 43m
Delta
Fri 5/296:41 pm
BOI
- BWI
1 stop9h 04m
Delta
Deal found 5/21![Delta logo]()
$311
This Alaska Airlines deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 5/287:35 pm
BWI
- BOI
1 stop17h 28m
Alaska Airlines
Fri 5/298:51 pm
BOI
- BWI
1 stop7h 37m
Alaska Airlines
Deal found 5/18![Alaska Airlines logo]()
$330
This Delta deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 5/284:51 pm
BWI
- BOI
1 stop7h 37m
Delta
Tue 6/26:41 pm
BOI
- BWI
1 stop9h 04m
Delta
Deal found 5/18![Delta logo]()
$395
This Delta deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 6/97:13 pm
BWI
- GEG
1 stop6h 54m
Delta
Sat 6/1312:47 pm
GEG
- BWI
1 stop8h 53m
Delta
Deal found 5/18![Delta logo]()
$374
This Delta deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/97:13 pm
BWI
- GEG
1 stop6h 54m
Delta
Fri 6/197:08 pm
GEG
- BWI
1 stop7h 41m
Delta
Deal found 5/17![Delta logo]()
$383
This Delta deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 6/97:13 pm
BWI
- GEG
1 stop6h 54m
Delta
Wed 6/1712:47 pm
GEG
- BWI
1 stop8h 53m
Delta
Deal found 5/18![Delta logo]()
$394
This American Airlines deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 6/133:00 pm
BWI
- GEG
1 stop8h 43m
American Airlines
Tue 6/162:01 pm
GEG
- BWI
1 stop6h 58m
American Airlines
Deal found 5/20![American Airlines logo]()
$329
This Southwest deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 6/297:30 pm
BWI
- BOI
1 stop7h 40m
Southwest
Fri 7/34:25 pm
BOI
- BWI
1 stop6h 05m
Southwest
Deal found 5/20![Southwest logo]()
$392
One-way flights from Baltimore to IdahoSearch for one-way flight options from Baltimore to Idaho. Find affordable one-way fares based on user searches. Data last updated May 22, 2026.
Search for one-way flight options from Baltimore to Idaho. Find affordable one-way fares based on user searches. Data last updated May 22, 2026.
This Delta deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 5/276:59 pm
BWI
- BOI
1 stop6h 47m
Delta
Deal found 5/18![Delta logo]()
$132
This American Airlines deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” 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 9/167:26 am
BWI
- BOI
1 stop8h 36m
American Airlines
Deal found 5/19![American Airlines logo]()
$134
This Southwest deal was found by Cheapflights users on 5/21. 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.
Fri 5/294:45 pm
BWI
- BOI
2 stops10h 00m
Southwest
Deal found 5/21![Southwest logo]()
$137
This Delta deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:00 pm
BWI
- BOI
1 stop7h 32m
Delta
Deal found 5/17![Delta logo]()
$147
This Delta deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/137:10 pm
BWI
- GEG
1 stop6h 56m
Delta
Deal found 5/17![Delta logo]()
$155
This Southwest deal was found by Cheapflights users on 5/21. 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.
Fri 5/294:45 pm
BWI
- GEG
2 stops10h 45m
Southwest
Deal found 5/21![Southwest logo]()
$160
This Southwest deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 8/115:55 pm
BWI
- GEG
1 stop7h 30m
Southwest
Deal found 5/20![Southwest logo]()
$164
This Southwest deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 7/33:45 pm
BWI
- GEG
1 stop11h 45m
Southwest
Deal found 5/20![Southwest logo]()
$167
This American Airlines deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 7/46:00 am
BWI
- GEG
2 stops11h 40m
American Airlines
Deal found 5/20![American Airlines logo]()
$172
This Delta deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 7/86:20 am
BWI
- BOI
1 stop9h 24m
Delta
Deal found 5/18![Delta logo]()
$172
This Delta deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” 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 7/217:00 am
BWI
- GEG
1 stop7h 40m
Delta
Deal found 5/19![Delta logo]()
$175
This Southwest deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 7/144:50 pm
BWI
- GEG
2 stops9h 55m
Southwest
Deal found 5/20![Southwest logo]()
$180
Find flight deals from Baltimore to Idaho
Keep the following information in mind while searching for Baltimore to Idaho flight deals. Data was last updated May 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $263 (Delta) |
One-way from | $132 (Delta) |
Popular in | December |
Cheapest in | May |
Average price | $328 |
Cheapflights Fare Finder
Customize your flight search to find flights from Baltimore 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 May 22, 2026.
Use the filters below to find and compare flights from Baltimore to Idaho that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BaltimoreBoise
BWI - BOI
BWIBOI
Baltimore/Washington
Fri 8/14
7:39 am-12:10 pm
1 stop6h 31m
Boise Air Term. Gowen Fld
Tue 8/18
6:44 pm-6:20 am
1 stop9h 36m
$306
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Tue 8/25
4:43 pm-11:11 pm
1 stop9h 28m
Spokane
Tue 9/1
5:12 am-3:40 pm
1 stop7h 28m
$309
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Sat 9/26
6:19 am-1:07 pm
1 stop9h 48m
Spokane
Wed 9/30
7:07 pm-6:03 am
1 stop7h 56m
$309
BaltimoreBoise
BWI - BOI
BWIBOI
Baltimore/Washington
Thu 5/28
7:00 am-12:43 pm
1 stop7h 43m
Boise Air Term. Gowen Fld
Fri 5/29
6:41 pm-5:45 am
1 stop9h 04m
$311
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Tue 8/25
4:43 pm-11:11 pm
1 stop9h 28m
Spokane
Wed 8/26
5:12 am-3:40 pm
1 stop7h 28m
$323
BaltimoreBoise
BWI - BOI
BWIBOI
Baltimore/Washington
Mon 7/27
7:10 pm-11:46 pm
1 stop6h 36m
Boise Air Term. Gowen Fld
Thu 8/6
11:35 pm-9:19 am
1 stop7h 44m
$325
BaltimoreBoise
BWI - BOI
BWIBOI
Baltimore/Washington
Fri 7/10
5:40 am-12:53 pm
1 stop9h 13m
Boise Air Term. Gowen Fld
Sun 7/12
11:42 pm-9:24 am
1 stop7h 42m
$349
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Fri 8/14
4:10 pm-10:00 pm
1 stop8h 50m
Spokane
Sun 8/16
1:00 pm-6:35 am
1 stop14h 35m
$356
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Mon 7/6
6:19 am-11:40 am
1 stop8h 21m
Spokane
Mon 7/13
7:08 pm-6:00 am
1 stop7h 52m
$374
BaltimoreBoise
BWI - BOI
BWIBOI
Baltimore/Washington
Fri 8/14
7:40 am-4:15 pm
2 stops10h 35m
Boise Air Term. Gowen Fld
Tue 8/18
2:20 pm-6:30 am
1 stop14h 10m
$381
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Baltimore to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from Baltimore with our price prediction graph.
BWI-BOI
BWI-GEG
BWI-SUN
BWI-IDA
BWI-JAC
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 Baltimore to Idaho
BWI-USID
BWI-BOI
BWI-GEG
BWI-SUN
BWI-IDA
What is the cheapest month to book a flight from Baltimore to Idaho?
Currently, July is the cheapest month in which you can book a flight from Baltimore to Idaho (average of $116). Flying from Baltimore to Idaho in April is currently the most expensive (average of $410). 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 Baltimore to Idaho?
How far ahead should I book a flight from Baltimore to Idaho?
Booking 33 days in advance of your planned departure date is, on average, the best time to get cheap flights from Baltimore to Idaho. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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 May 22, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Southwest, andDelta from Baltimore to Idaho by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.0
Boarding
8.1
Comfort
7.8
Food
7.0
Crew
8.5
Overall
7.9
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Entertainment
7.0
Boarding
8.1
Comfort
7.8
Food
7.0
Crew
8.5
Overall
7.9
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Entertainment
7.0
Boarding
8.1
Comfort
7.8
Food
7.0
Crew
8.5
Overall
7.9
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Entertainment
7.0
Boarding
8.1
Comfort
7.8
Food
7.0
Crew
8.5
Overall
7.9
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Entertainment
7.0
Boarding
8.1
Comfort
7.8
Food
7.0
Crew
8.5
Overall
7.9
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Related info for your journey
Find useful and relevant information for your journey from Baltimore 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 Baltimore to Idaho
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Idaho by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Baltimore to Idaho by cabin class
Find flights from Baltimore to Idaho, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Baltimore and Idaho flights
Browse other Baltimore and Idaho flight options. Last updated on May 22, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Baltimore to Idaho flights
Consider these flights traveling from Baltimore to Idaho.
Top 4 airlines flying from Baltimore to Idaho
Discover the top 4 airlines that operate flights from Baltimore 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 May 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$196 | Average$438 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$275 | Average$628 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$321 | Average$372 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$342 | Average$478 | FlexibilityNo cancel fee | On-time63% |