$103+ 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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — BOI
May 22 — May 291
Round-trip
1 adult, Economy
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Find cheap flights from Baltimore to Idaho with Cheapflights
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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 April 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 April 22, 2026.
This Delta deal was found by Cheapflights users on 4/20. 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 8/187:00 pm
BWI
- BOI
1 stop6h 29m
Delta
Wed 8/265:40 am
BOI
- BWI
2 stops9h 28m
Delta
Deal found 4/20![Delta logo]()
$202
This Delta deal was found by Cheapflights users on 4/20. 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.
Wed 9/97:10 am
BWI
- BOI
1 stop9h 24m
Delta
Mon 9/1411:30 pm
BOI
- BWI
1 stop9h 40m
Delta
Deal found 4/20![Delta logo]()
$203
This Delta deal was found by Cheapflights users on 4/20. 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 8/257:00 pm
BWI
- GEG
1 stop7h 04m
Delta
Tue 9/16:05 am
GEG
- BWI
1 stop9h 04m
Delta
Deal found 4/20![Delta logo]()
$205
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 8/247:00 pm
BWI
- BOI
1 stop6h 29m
Delta
Sat 8/295:40 am
BOI
- BWI
1 stop6h 15m
Delta
Deal found 4/21![Delta logo]()
$209
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.
Thu 8/207:10 am
BWI
- BOI
1 stop9h 24m
Delta
Mon 8/245:40 am
BOI
- BWI
2 stops11h 12m
Delta
Deal found 4/21![Delta logo]()
$214
This Southwest deal was found by Cheapflights users on 4/20. 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 8/182:55 pm
BWI
- BOI
1 stop9h 30m
Southwest
Wed 8/266:00 am
BOI
- BWI
1 stop8h 30m
Southwest
Deal found 4/20![Southwest logo]()
$216
This Delta deal was found by Cheapflights users on 4/20. 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.
Wed 6/37:00 am
BWI
- GEG
1 stop8h 01m
Delta
Mon 6/810:48 pm
GEG
- BWI
1 stop8h 59m
Delta
Deal found 4/20![Delta logo]()
$224
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.
Sat 9/124:23 pm
BWI
- BOI
1 stop8h 09m
United Airlines
Sat 9/1911:46 am
BOI
- BWI
2 stops10h 57m
United Airlines
Deal found 4/21![United Airlines logo]()
$246
This United Airlines deal was found by Cheapflights users on 4/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/246:15 am
BWI
- BOI
1 stop7h 17m
United Airlines
Thu 5/287:05 pm
BOI
- BWI
1 stop10h 05m
United Airlines
Deal found 4/20![United Airlines logo]()
$252
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.
Sun 5/247:00 am
BWI
- GEG
1 stop7h 17m
Delta
Tue 6/212:27 pm
GEG
- BWI
1 stop9h 20m
Delta
Deal found 4/21![Delta logo]()
$257
This Southwest deal was found by Cheapflights users on 4/20. 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.
Wed 9/911:00 am
BWI
- BOI
2 stops10h 45m
Southwest
Mon 9/1412:10 pm
BOI
- BWI
1 stop8h 35m
Southwest
Deal found 4/20![Southwest logo]()
$257
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 5/286:59 pm
BWI
- BOI
1 stop6h 47m
Delta
Wed 6/311:39 pm
BOI
- BWI
1 stop9h 05m
Delta
Deal found 4/22![Delta logo]()
$258
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 April 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 April 22, 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 8/187:00 pm
BWI
- BOI
1 stop6h 29m
Delta
Wed 8/265:40 am
BOI
- BWI
2 stops9h 28m
Delta
Deal found 4/21![Delta logo]()
$202
This Alaska Airlines deal was found by Cheapflights users on 4/17. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/294:17 pm
BWI
- GEG
1 stop9h 49m
Alaska Airlines
Mon 6/17:25 pm
GEG
- BWI
1 stop16h 52m
Alaska Airlines
Deal found 4/17![Alaska Airlines logo]()
$328
This Southwest deal was found by Cheapflights users on 4/17. 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.
Mon 6/13:55 pm
BWI
- BOI
1 stop10h 50m
Southwest
Wed 6/175:30 am
BOI
- BWI
2 stops11h 25m
Southwest
Deal found 4/17![Southwest logo]()
$389
This United Airlines deal was found by Cheapflights users on 4/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/224:23 pm
BWI
- SUN
1 stop6h 48m
United Airlines
Tue 8/257:00 am
SUN
- BWI
1 stop6h 12m
United Airlines
Deal found 4/20![United Airlines logo]()
$401
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 5/126:59 pm
BWI
- GEG
1 stop7h 07m
Delta
Tue 5/194:57 pm
GEG
- BWI
1 stop9h 48m
Delta
Deal found 4/21![Delta logo]()
$205
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.
Sun 5/105:05 am
BWI
- GEG
2 stops12h 14m
American Airlines
Sat 5/232:08 pm
GEG
- BWI
1 stop7h 03m
American Airlines
Deal found 4/21![American Airlines logo]()
$461
This Delta deal was found by Cheapflights users on 4/20. 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 5/295:26 pm
BWI
- GEG
2 stops9h 09m
Delta
Mon 6/110:40 pm
GEG
- BWI
1 stop9h 04m
Delta
Deal found 4/20![Delta logo]()
$276
This Alaska Airlines deal was found by Cheapflights users on 4/18. 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.
Wed 6/107:03 am
BWI
- BOI
1 stop10h 23m
Alaska Airlines
Tue 6/166:13 pm
BOI
- BWI
1 stop9h 28m
Alaska Airlines
Deal found 4/18![Alaska Airlines logo]()
$388
This Southwest deal was found by Cheapflights users on 4/19. 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.
Fri 9/46:35 am
BWI
- BOI
2 stops9h 35m
Southwest
Tue 9/86:00 am
BOI
- BWI
1 stop8h 30m
Southwest
Deal found 4/19![Southwest logo]()
$389
This Delta deal was found by Cheapflights users on 4/17. 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 7/135:32 am
BWI
- GEG
1 stop9h 08m
Delta
Tue 7/284:30 pm
GEG
- BWI
2 stops10h 27m
Delta
Deal found 4/17![Delta logo]()
$342
This United Airlines deal was found by Cheapflights users on 4/17. 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.
Sat 5/24:12 pm
BWI
- IDA
1 stop6h 51m
United Airlines
Wed 5/62:31 pm
IDA
- BWI
1 stop6h 56m
United Airlines
Deal found 4/17![United Airlines logo]()
$419
This Alaska Airlines deal was found by Cheapflights users on 4/18. 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.
Sat 9/124:34 pm
BWI
- IDA
1 stop22h 34m
Alaska Airlines
Wed 9/164:14 pm
IDA
- BWI
1 stop21h 20m
Alaska Airlines
Deal found 4/18![Alaska Airlines logo]()
$413
This Delta deal was found by Cheapflights users on 4/19. 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 8/127:10 am
BWI
- BOI
1 stop9h 24m
Delta
Wed 8/195:40 am
BOI
- BWI
2 stops9h 28m
Delta
Deal found 4/19![Delta logo]()
$345
This Southwest deal was found by Cheapflights users on 4/17. 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 6/2612:50 pm
BWI
- BOI
1 stop8h 15m
Southwest
Tue 6/305:30 am
BOI
- BWI
2 stops11h 25m
Southwest
Deal found 4/17![Southwest logo]()
$418
This United Airlines deal was found by Cheapflights users on 4/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/68:27 am
BWI
- SUN
1 stop7h 11m
United Airlines
Sun 5/102:30 pm
SUN
- BWI
1 stop6h 57m
United Airlines
Deal found 4/20![United Airlines logo]()
$470
This Delta deal was found by Cheapflights users on 4/19. 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.
Mon 7/275:00 pm
BWI
- BOI
1 stop7h 32m
Delta
Thu 8/65:20 am
BOI
- BWI
2 stops11h 03m
Delta
Deal found 4/19![Delta logo]()
$356
This Alaska Airlines deal was found by Cheapflights users on 4/17. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/114:19 pm
BWI
- BOI
1 stop9h 29m
Alaska Airlines
Sat 6/134:21 pm
BOI
- BWI
1 stop11h 20m
Alaska Airlines
Deal found 4/17![Alaska Airlines logo]()
$444
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.
Wed 7/14:50 pm
BWI
- GEG
2 stops10h 15m
Southwest
Wed 7/152:55 pm
GEG
- BWI
1 stop6h 55m
Southwest
Deal found 4/21![Southwest logo]()
$453
This Alaska Airlines deal was found by Cheapflights users on 4/20. 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.
Tue 6/24:17 pm
BWI
- GEG
1 stop9h 49m
Alaska Airlines
Sat 6/612:36 pm
GEG
- BWI
2 stops14h 52m
Alaska Airlines
Deal found 4/20![Alaska Airlines logo]()
$454
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 8/214:23 pm
BWI
- SUN
1 stop6h 48m
United Airlines
Tue 8/257:00 am
SUN
- BWI
1 stop6h 12m
United Airlines
Deal found 4/21![United Airlines logo]()
$501
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:07 pm
BWI
- SUN
1 stop17h 31m
Alaska Airlines
Tue 8/1810:20 am
SUN
- BWI
1 stop18h 07m
Alaska Airlines
Deal found 4/21![Alaska Airlines logo]()
$459
This United Airlines deal was found by Cheapflights users on 4/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/197:00 am
BWI
- SUN
1 stop8h 16m
United Airlines
Sat 7/258:00 am
SUN
- BWI
2 stops14h 48m
United Airlines
Deal found 4/19![United Airlines logo]()
$512
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 5/77:00 am
BWI
- BOI
1 stop6h 56m
Delta
Wed 5/1311:39 pm
BOI
- BWI
1 stop7h 44m
Delta
Deal found 4/22![Delta logo]()
$428
This Expedia deal was found by Cheapflights users on 4/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/44:17 pm
BWI
- IDA
1 stop23h 00m
Alaska Airlines
Tue 6/91:54 pm
IDA
- BWI
1 stop13h 49m
Alaska Airlines
Deal found 4/17![Alaska Airlines logo]()
$468
This Delta deal was found by Cheapflights users on 4/18. 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.
Sun 7/126:20 am
BWI
- BOI
1 stop9h 24m
Delta
Fri 7/1711:42 pm
BOI
- BWI
1 stop8h 25m
Delta
Deal found 4/18![Delta logo]()
$443
This United Airlines deal was found by Cheapflights users on 4/18. 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.
Tue 8/184:23 pm
BWI
- JAC
1 stop6h 39m
United Airlines
Tue 8/252:30 pm
JAC
- BWI
2 stops8h 13m
United Airlines
Deal found 4/18![United Airlines logo]()
$563
This Alaska Airlines deal was found by Cheapflights users on 4/17. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:04 am
BWI
- IDA
1 stop10h 25m
Alaska Airlines
Wed 5/66:00 am
IDA
- BWI
1 stop10h 16m
Alaska Airlines
Deal found 4/17![Alaska Airlines logo]()
$513
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.
Wed 5/68:27 am
BWI
- WYS
1 stop7h 01m
United Airlines
Sun 5/102:03 pm
WYS
- BWI
1 stop7h 24m
United Airlines
Deal found 4/21![United Airlines logo]()
$578
This Delta deal was found by Cheapflights users on 4/19. 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 8/221:00 pm
BWI
- IDA
2 stops11h 14m
Delta
Sun 8/306:50 pm
IDA
- BWI
1 stop9h 13m
Delta
Deal found 4/19![Delta logo]()
$499
This Expedia deal was found by Cheapflights users on 4/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/86:07 pm
BWI
- SUN
1 stop17h 31m
Alaska Airlines
Sat 8/1510:20 am
SUN
- BWI
1 stop18h 07m
Alaska Airlines
Deal found 4/17![Alaska Airlines logo]()
$520
Last-minute flights from Baltimore to IdahoDiscover last-minute flight deals from Baltimore to Idaho. Data last updated April 22, 2026 and is based on user searches.
Discover last-minute flight deals from Baltimore to Idaho. Data last updated April 22, 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 5/126:59 pm
BWI
- GEG
1 stop7h 07m
Delta
Tue 5/194:57 pm
GEG
- BWI
1 stop9h 48m
Delta
Deal found 4/21![Delta logo]()
$205
This Delta deal was found by Cheapflights users on 4/20. 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 5/126:59 pm
BWI
- BOI
1 stop6h 47m
Delta
Sun 5/1711:39 pm
BOI
- BWI
1 stop7h 44m
Delta
Deal found 4/20![Delta logo]()
$292
This United Airlines deal was found by Cheapflights users on 4/17. 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.
Wed 5/134:12 pm
BWI
- GEG
1 stop8h 04m
United Airlines
Thu 5/281:41 pm
GEG
- BWI
1 stop6h 49m
United Airlines
Deal found 4/17![United Airlines logo]()
$303
This Delta deal was found by Cheapflights users on 4/17. 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 5/134:54 pm
BWI
- GEG
1 stop7h 26m
Delta
Thu 5/287:25 am
GEG
- BWI
2 stops12h 52m
Delta
Deal found 4/17![Delta logo]()
$308
This United Airlines deal was found by Cheapflights users on 4/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/246:15 am
BWI
- BOI
1 stop7h 17m
United Airlines
Thu 5/287:05 pm
BOI
- BWI
1 stop10h 05m
United Airlines
Deal found 4/20![United Airlines logo]()
$252
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.
Sun 5/247:00 am
BWI
- GEG
1 stop7h 17m
Delta
Tue 6/212:27 pm
GEG
- BWI
1 stop9h 20m
Delta
Deal found 4/21![Delta logo]()
$257
This Delta deal was found by Cheapflights users on 4/18. 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 5/276:00 am
BWI
- GEG
1 stop8h 17m
Delta
Mon 6/110:40 pm
GEG
- BWI
1 stop7h 43m
Delta
Deal found 4/18![Delta logo]()
$309
This Delta deal was found by Cheapflights users on 4/17. 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 5/286:00 am
BWI
- BOI
1 stop8h 43m
Delta
Wed 6/311:39 pm
BOI
- BWI
1 stop9h 05m
Delta
Deal found 4/17![Delta logo]()
$301
This Delta deal was found by Cheapflights users on 4/17. 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 5/287:00 am
BWI
- BOI
1 stop7h 43m
Delta
Tue 6/29:18 pm
BOI
- BWI
2 stops12h 25m
Delta
Deal found 4/17![Delta logo]()
$306
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.
Fri 5/295:26 pm
BWI
- GEG
2 stops9h 09m
Delta
Mon 6/110:40 pm
GEG
- BWI
1 stop9h 04m
Delta
Deal found 4/21![Delta logo]()
$268
This Delta deal was found by Cheapflights users on 4/20. 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 5/295:26 pm
BWI
- GEG
2 stops9h 09m
Delta
Thu 6/44:59 pm
GEG
- BWI
1 stop9h 46m
Delta
Deal found 4/20![Delta logo]()
$276
This Delta deal was found by Cheapflights users on 4/18. 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 5/306:10 am
BWI
- BOI
2 stops9h 08m
Delta
Tue 6/211:39 pm
BOI
- BWI
1 stop7h 44m
Delta
Deal found 4/18![Delta logo]()
$288
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 April 22, 2026.
Search for one-way flight options from Baltimore to Idaho. Find affordable one-way fares based on user searches. Data last updated April 22, 2026.
This Delta deal was found by Cheapflights users on 4/20. 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 6/97:05 am
BWI
- GEG
1 stop8h 10m
Delta
Deal found 4/20![Delta logo]()
$103
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.
Wed 5/275:26 pm
BWI
- GEG
2 stops9h 09m
Delta
Deal found 4/21![Delta logo]()
$108
This Delta deal was found by Cheapflights users on 4/20. 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 5/126:59 pm
BWI
- BOI
1 stop6h 47m
Delta
Deal found 4/20![Delta logo]()
$132
This United Airlines deal was found by Cheapflights users on 4/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/126:20 am
BWI
- BOI
2 stops11h 06m
United Airlines
Deal found 4/20![United Airlines logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 4/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/46:28 am
BWI
- IDA
2 stops28h 27m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$142
This Southwest deal was found by Cheapflights users on 4/20. 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.
Sat 5/162:10 pm
BWI
- GEG
1 stop10h 25m
Southwest
Deal found 4/20![Southwest logo]()
$149
This Delta deal was found by Cheapflights users on 4/20. 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.
Mon 6/226:45 am
BWI
- GEG
1 stop7h 51m
Delta
Deal found 4/20![Delta logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/135:17 pm
BWI
- BOI
2 stops21h 10m
Frontier
Deal found 4/17![Frontier logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/275:17 pm
BWI
- BOI
2 stops21h 13m
Frontier
Deal found 4/20![Frontier logo]()
$158
This Delta deal was found by Cheapflights users on 4/19. 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 6/236:08 am
BWI
- GEG
2 stops10h 10m
Delta
Deal found 4/19![Delta logo]()
$160
This United Airlines deal was found by Cheapflights users on 4/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/256:10 am
BWI
- BOI
1 stop7h 22m
United Airlines
Deal found 4/20![United Airlines logo]()
$160
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.
Wed 5/273:30 pm
BWI
- GEG
1 stop10h 25m
Southwest
Deal found 4/21![Southwest logo]()
$162
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 April 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $202 (Delta) |
One-way from | $103 (Delta) |
Popular in | December |
Cheapest in | April |
Average price | $270 |
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 April 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
Tue 8/18
7:00 pm-11:29 pm
1 stop6h 29m
Boise Air Term. Gowen Fld
Wed 8/26
5:40 am-5:08 pm
2 stops9h 28m
$202
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Tue 5/12
6:59 pm-11:06 pm
1 stop7h 07m
Spokane
Tue 5/19
4:57 pm-5:45 am
1 stop9h 48m
$205
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Fri 5/29
5:26 pm-11:35 pm
2 stops9h 09m
Spokane
Mon 6/1
10:40 pm-10:44 am
1 stop9h 04m
$276
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Fri 5/29
4:17 pm-11:06 pm
1 stop9h 49m
Spokane
Mon 6/1
7:25 pm-3:17 pm
1 stop16h 52m
$328
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Mon 7/13
5:32 am-11:40 am
1 stop9h 08m
Spokane
Tue 7/28
4:30 pm-5:57 am
2 stops10h 27m
$342
BaltimoreBoise
BWI - BOI
BWIBOI
Baltimore/Washington
Wed 8/12
7:10 am-2:34 pm
1 stop9h 24m
Boise Air Term. Gowen Fld
Wed 8/19
5:40 am-5:08 pm
2 stops9h 28m
$345
BaltimoreBoise
BWI - BOI
BWIBOI
Baltimore/Washington
Mon 7/27
5:00 pm-10:32 pm
1 stop7h 32m
Boise Air Term. Gowen Fld
Thu 8/6
5:20 am-6:23 pm
2 stops11h 03m
$356
BaltimoreBoise
BWI - BOI
BWIBOI
Baltimore/Washington
Wed 6/10
7:03 am-3:26 pm
1 stop10h 23m
Boise Air Term. Gowen Fld
Tue 6/16
6:13 pm-5:41 am
1 stop9h 28m
$388
BaltimoreBoise
BWI - BOI
BWIBOI
Baltimore/Washington
Mon 6/1
3:55 pm-12:45 am
1 stop10h 50m
Boise Air Term. Gowen Fld
Wed 6/17
5:30 am-6:55 pm
2 stops11h 25m
$389
BaltimoreBoise
BWI - BOI
BWIBOI
Baltimore/Washington
Fri 9/4
6:35 am-2:10 pm
2 stops9h 35m
Boise Air Term. Gowen Fld
Tue 9/8
6:00 am-4:30 pm
1 stop8h 30m
$389
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-GEG
BWI-BOI
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-GEG
BWI-BOI
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?
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 22, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, 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.
Boarding
8.1
Food
7.0
Comfort
8.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Food
7.0
Comfort
8.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Food
7.0
Comfort
8.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Food
7.0
Comfort
8.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Food
7.0
Comfort
8.0
Crew
8.6
Overall
8.0
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 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 April 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 April 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$208 | Average$458 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$275 | Average$628 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$321 | Average$393 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$351 | Average$487 | FlexibilityNo cancel fee | On-time63% |