$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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — BOI
May 2 — May 91
Round-trip
1 adult, Economy
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Find cheap flights from Baltimore to Idaho with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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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 2, 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 2, 2026.
This American Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 4/225:39 am
BWI
- BOI
1 stop9h 10m
American Airlines
Tue 5/121:29 pm
BOI
- BWI
1 stop8h 37m
American Airlines
Deal found 4/1![American Airlines logo]()
$263
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 4/256:03 am
BWI
- BOI
2 stops10h 23m
Delta
Sat 5/91:53 pm
BOI
- BWI
1 stop9h 04m
Delta
Deal found 4/1![Delta logo]()
$268
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 4/2810:42 am
BWI
- BOI
2 stops13h 14m
Delta
Thu 5/79:16 pm
BOI
- BWI
2 stops11h 49m
Delta
Deal found 3/31![Delta logo]()
$273
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 5/96:00 am
BWI
- BOI
1 stop8h 43m
Delta
Mon 5/1111:39 pm
BOI
- BWI
1 stop9h 05m
Delta
Deal found 3/31![Delta logo]()
$291
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 4/226:00 am
BWI
- BOI
1 stop9h 07m
Delta
Wed 4/2911:35 pm
BOI
- BWI
1 stop9h 11m
Delta
Deal found 3/31![Delta logo]()
$295
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 5/96:00 am
BWI
- BOI
1 stop8h 43m
Delta
Tue 5/1210:50 am
BOI
- BWI
2 stops10h 27m
Delta
Deal found 3/31![Delta logo]()
$296
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 4/216:00 am
BWI
- GEG
1 stop8h 41m
Delta
Tue 4/2810:40 pm
GEG
- BWI
1 stop9h 06m
Delta
Deal found 3/31![Delta logo]()
$297
This Southwest deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 4/229:05 am
BWI
- BOI
1 stop8h 20m
Southwest
Wed 4/294:05 pm
BOI
- BWI
1 stop11h 35m
Southwest
Deal found 3/31![Southwest logo]()
$300
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 12/306:00 am
BWI
- BOI
2 stops10h 07m
Delta
Tue 1/511:30 am
BOI
- BWI
2 stops10h 16m
Delta
Deal found 4/1![Delta logo]()
$301
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 6/85:05 pm
GEG
- BWI
1 stop9h 45m
Delta
Deal found 3/31![Delta logo]()
$309
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 4/256:03 am
BWI
- BOI
2 stops10h 23m
Delta
Fri 5/156:41 pm
BOI
- BWI
1 stop9h 04m
Delta
Deal found 4/1![Delta logo]()
$311
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 5/276:10 am
BWI
- GEG
2 stops10h 01m
Delta
Mon 6/110:40 pm
GEG
- BWI
1 stop7h 43m
Delta
Deal found 4/1![Delta logo]()
$314
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 2, 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 2, 2026.
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 pm
BWI
- GEG
1 stop7h 07m
Delta
Mon 6/16:45 pm
GEG
- BWI
1 stop8h 00m
Delta
Deal found 4/1![Delta logo]()
$318
This Southwest deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 5/83:55 pm
BWI
- BOI
1 stop10h 50m
Southwest
Mon 5/117:55 pm
BOI
- BWI
1 stop7h 45m
Southwest
Deal found 3/31![Southwest logo]()
$370
This United Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 5/26:15 am
BWI
- BOI
1 stop7h 34m
United Airlines
Tue 5/52:26 pm
BOI
- BWI
1 stop7h 01m
United Airlines
Deal found 3/31![United Airlines logo]()
$373
This Alaska Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 8/154:19 pm
BWI
- GEG
1 stop9h 40m
Alaska Airlines
Wed 9/26:00 am
GEG
- BWI
1 stop8h 16m
Alaska Airlines
Deal found 4/1![Alaska Airlines logo]()
$437
This Delta deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” 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 5/23:00 pm
BWI
- GEG
1 stop9h 05m
Delta
Fri 5/86:45 pm
GEG
- BWI
1 stop8h 00m
Delta
Deal found 3/29![Delta logo]()
$372
This Southwest deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” 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 5/22:50 pm
BWI
- GEG
2 stops9h 25m
Southwest
Fri 5/82:50 pm
GEG
- BWI
1 stop6h 35m
Southwest
Deal found 3/29![Southwest logo]()
$377
This United Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 4/2811:08 am
BWI
- BOI
2 stops11h 05m
United Airlines
Wed 4/297:11 am
BOI
- BWI
2 stops14h 13m
United Airlines
Deal found 4/1![United Airlines logo]()
$384
This Southwest deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 5/53:25 pm
BWI
- GEG
1 stop11h 00m
Southwest
Sun 5/102:55 pm
GEG
- BWI
1 stop8h 00m
Southwest
Deal found 3/30![Southwest logo]()
$378
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 6/106:19 am
BWI
- BOI
1 stop9h 32m
Delta
Tue 6/166:42 pm
BOI
- BWI
1 stop9h 08m
Delta
Deal found 4/1![Delta logo]()
$383
This Alaska Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 5/244:17 pm
BWI
- BOI
1 stop9h 41m
Alaska Airlines
Sun 5/314:19 pm
BOI
- BWI
1 stop12h 09m
Alaska Airlines
Deal found 4/1![Alaska Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” 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 4/286:00 am
BWI
- SUN
2 stops9h 35m
United Airlines
Tue 5/52:30 pm
SUN
- BWI
1 stop6h 57m
United Airlines
Deal found 3/29![United Airlines logo]()
$406
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 8/295:30 pm
BWI
- GEG
2 stops8h 34m
Delta
Sat 9/52:05 pm
GEG
- BWI
1 stop6h 39m
Delta
Deal found 4/1![Delta logo]()
$402
This Southwest deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” 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 6/14:20 pm
BWI
- GEG
2 stops9h 00m
Southwest
Thu 6/42:15 pm
GEG
- BWI
1 stop7h 15m
Southwest
Deal found 3/27![Southwest logo]()
$426
This Delta deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” 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 6/105:32 am
BWI
- GEG
2 stops10h 46m
Delta
Sat 6/205:05 pm
GEG
- BWI
1 stop9h 45m
Delta
Deal found 3/28![Delta logo]()
$402
This Alaska Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 8/104:19 pm
BWI
- IDA
1 stop22h 47m
Alaska Airlines
Mon 8/174:14 pm
IDA
- BWI
1 stop21h 02m
Alaska Airlines
Deal found 3/31![Alaska Airlines logo]()
$512
This Southwest deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/219:40 pm
BWI
- BOI
2 stops17h 00m
Southwest
Tue 5/264:05 pm
BOI
- BWI
1 stop11h 35m
Southwest
Deal found 3/31![Southwest logo]()
$432
This Delta deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” 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 4/2812:27 pm
BWI
- SUN
2 stops11h 15m
Delta
Tue 5/512:42 pm
SUN
- BWI
2 stops9h 56m
Delta
Deal found 3/29![Delta logo]()
$411
This United Airlines deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” 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 4/218:00 am
BWI
- SUN
1 stop7h 35m
United Airlines
Sat 4/252:24 pm
SUN
- BWI
1 stop7h 00m
United Airlines
Deal found 3/28![United Airlines logo]()
$501
This Alaska Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 8/154:19 pm
BWI
- IDA
1 stop22h 47m
Alaska Airlines
Fri 8/284:14 pm
IDA
- BWI
1 stop21h 20m
Alaska Airlines
Deal found 4/1![Alaska Airlines logo]()
$512
This Southwest deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” 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 8/88:50 am
BWI
- BOI
1 stop7h 55m
Southwest
Tue 8/116:00 am
BOI
- BWI
1 stop8h 30m
Southwest
Deal found 3/29![Southwest logo]()
$434
This Delta deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” 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 6/166:19 am
BWI
- GEG
1 stop8h 21m
Delta
Mon 6/2910:48 pm
GEG
- BWI
1 stop8h 59m
Delta
Deal found 3/29![Delta logo]()
$422
This Alaska Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 4/297:04 am
BWI
- IDA
1 stop10h 25m
Alaska Airlines
Wed 5/66:00 am
IDA
- BWI
1 stop10h 16m
Alaska Airlines
Deal found 4/1![Alaska Airlines logo]()
$512
This United Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 4/178:00 am
BWI
- SUN
1 stop7h 35m
United Airlines
Tue 4/212:24 pm
SUN
- BWI
1 stop7h 00m
United Airlines
Deal found 4/1![United Airlines logo]()
$531
This Delta deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” 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 5/67:15 am
BWI
- JAC
1 stop6h 59m
Delta
Tue 5/127:00 am
JAC
- BWI
2 stops10h 42m
Delta
Deal found 3/29![Delta logo]()
$426
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 4/1811:08 am
BWI
- JAC
2 stops11h 45m
United Airlines
Tue 4/217:00 am
JAC
- BWI
2 stops12h 23m
United Airlines
Deal found 3/30![United Airlines logo]()
$546
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 7/146:08 am
BWI
- BOI
2 stops8h 05m
Delta
Sun 7/196:42 pm
BOI
- BWI
1 stop9h 15m
Delta
Deal found 4/1![Delta logo]()
$452
This United Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 7/107:00 am
BWI
- JAC
1 stop8h 48m
United Airlines
Wed 7/151:42 pm
JAC
- BWI
1 stop7h 48m
United Airlines
Deal found 4/1![United Airlines logo]()
$548
This Alaska Airlines deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” 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 4/277:16 pm
BWI
- IDA
1 stop29h 24m
Alaska Airlines
Mon 5/46:00 am
IDA
- BWI
1 stop10h 16m
Alaska Airlines
Deal found 3/29![Alaska Airlines logo]()
$629
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 5/206:17 am
BWI
- BOI
2 stops10h 26m
Delta
Tue 5/269:16 pm
BOI
- BWI
2 stops11h 49m
Delta
Deal found 4/1![Delta logo]()
$461
This United Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 4/158:00 am
BWI
- SUN
1 stop7h 35m
United Airlines
Sun 4/192:24 pm
SUN
- BWI
1 stop7h 00m
United Airlines
Deal found 3/31![United Airlines logo]()
$581
Last-minute flights from Baltimore to IdahoDiscover last-minute flight deals from Baltimore to Idaho. Data last updated April 2, 2026 and is based on user searches.
Discover last-minute flight deals from Baltimore to Idaho. Data last updated April 2, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 4/216:00 am
BWI
- GEG
1 stop8h 41m
Delta
Tue 4/2810:40 pm
GEG
- BWI
1 stop9h 06m
Delta
Deal found 3/31![Delta logo]()
$297
This American Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 4/225:39 am
BWI
- BOI
1 stop9h 10m
American Airlines
Tue 5/121:29 pm
BOI
- BWI
1 stop8h 37m
American Airlines
Deal found 4/1![American Airlines logo]()
$263
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 4/226:00 am
BWI
- BOI
1 stop9h 07m
Delta
Wed 4/2911:35 pm
BOI
- BWI
1 stop9h 11m
Delta
Deal found 3/31![Delta logo]()
$295
This Southwest deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 4/229:05 am
BWI
- BOI
1 stop8h 20m
Southwest
Wed 4/294:05 pm
BOI
- BWI
1 stop11h 35m
Southwest
Deal found 3/31![Southwest logo]()
$300
This Southwest deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:45 am
BWI
- BOI
1 stop10h 55m
Southwest
Sun 4/264:10 pm
BOI
- BWI
1 stop6h 25m
Southwest
Deal found 4/1![Southwest logo]()
$325
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 4/256:03 am
BWI
- BOI
2 stops10h 23m
Delta
Sat 5/91:53 pm
BOI
- BWI
1 stop9h 04m
Delta
Deal found 4/1![Delta logo]()
$268
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 4/256:03 am
BWI
- BOI
2 stops10h 23m
Delta
Fri 5/156:41 pm
BOI
- BWI
1 stop9h 04m
Delta
Deal found 4/1![Delta logo]()
$311
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 4/2810:42 am
BWI
- BOI
2 stops13h 14m
Delta
Thu 5/79:16 pm
BOI
- BWI
2 stops11h 49m
Delta
Deal found 3/31![Delta logo]()
$273
This Southwest deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 4/289:05 am
BWI
- BOI
1 stop8h 20m
Southwest
Sat 5/22:50 pm
BOI
- BWI
1 stop6h 15m
Southwest
Deal found 3/30![Southwest logo]()
$327
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 5/96:00 am
BWI
- BOI
1 stop8h 43m
Delta
Tue 5/1211:39 pm
BOI
- BWI
1 stop9h 05m
Delta
Deal found 3/31![Delta logo]()
$291
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 5/276:10 am
BWI
- GEG
2 stops10h 01m
Delta
Mon 6/110:40 pm
GEG
- BWI
1 stop7h 43m
Delta
Deal found 4/1![Delta logo]()
$314
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 pm
BWI
- GEG
1 stop7h 07m
Delta
Mon 6/16:45 pm
GEG
- BWI
1 stop8h 00m
Delta
Deal found 4/1![Delta logo]()
$318
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 2, 2026.
Search for one-way flight options from Baltimore to Idaho. Find affordable one-way fares based on user searches. Data last updated April 2, 2026.
This Southwest deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 4/276:30 pm
BWI
- BOI
1 stop8h 30m
Southwest
Deal found 4/1![Southwest logo]()
$132
This Southwest deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 5/22:10 pm
BWI
- GEG
1 stop10h 25m
Southwest
Deal found 4/1![Southwest logo]()
$149
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 5/26:08 am
BWI
- GEG
2 stops13h 12m
Delta
Deal found 4/1![Delta logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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.
Mon 6/17:27 pm
BWI
- BOI
2 stops19h 03m
Frontier
Deal found 3/31![Frontier logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 4/1511:05 am
BWI
- BOI
2 stops26h 03m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$161
This Southwest deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 5/16:30 pm
BWI
- GEG
1 stop9h 00m
Southwest
Deal found 4/1![Southwest logo]()
$164
This Kiwi.com deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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.
Mon 5/1811:36 am
BWI
- BOI
2 stops26h 51m
Frontier
Deal found 3/31![Frontier logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” 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 6/106:57 pm
BWI
- GEG
2 stops28h 00m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$177
This Southwest deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 5/310:00 pm
BWI
- GEG
1 stop15h 00m
Southwest
Deal found 4/1![Southwest logo]()
$180
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 4/276:23 am
BWI
- BOI
2 stops12h 25m
United Airlines
Deal found 3/30![United Airlines logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” 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 6/245:19 pm
BWI
- GEG
2 stops29h 38m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$187
This Kiwi.com deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” 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 7/86:57 pm
BWI
- GEG
2 stops28h 04m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$194
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 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $263 (American Airlines) |
One-way from | $132 (Southwest) |
Popular in | December |
Cheapest in | April |
Average price | $265 |
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 2, 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
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Fri 5/29
6:59 pm-11:06 pm
1 stop7h 07m
Spokane
Mon 6/1
6:45 pm-5:45 am
1 stop8h 00m
$318
BaltimoreBoise
BWI - BOI
BWIBOI
Baltimore/Washington
Fri 5/8
3:55 pm-12:45 am
1 stop10h 50m
Boise Air Term. Gowen Fld
Mon 5/11
7:55 pm-5:40 am
1 stop7h 45m
$370
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Sat 5/2
3:00 pm-9:05 pm
1 stop9h 05m
Spokane
Fri 5/8
6:45 pm-5:45 am
1 stop8h 00m
$372
Quickest round-trip
BaltimoreBoise
BWI - BOI
BWIBOI
Baltimore/Washington
Sat 5/2
6:15 am-11:49 am
1 stop7h 34m
Boise Air Term. Gowen Fld
Tue 5/5
2:26 pm-11:27 pm
1 stop7h 01m
$373
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Sat 5/2
2:50 pm-9:15 pm
2 stops9h 25m
Spokane
Fri 5/8
2:50 pm-12:25 am
1 stop6h 35m
$377
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Tue 5/5
3:25 pm-11:25 pm
1 stop11h 00m
Spokane
Sun 5/10
2:55 pm-1:55 am
1 stop8h 00m
$378
BaltimoreBoise
BWI - BOI
BWIBOI
Baltimore/Washington
Wed 6/10
6:19 am-1:51 pm
1 stop9h 32m
Boise Air Term. Gowen Fld
Tue 6/16
6:42 pm-5:50 am
1 stop9h 08m
$383
BaltimoreBoise
BWI - BOI
BWIBOI
Baltimore/Washington
Tue 4/28
11:08 am-8:13 pm
2 stops11h 05m
Boise Air Term. Gowen Fld
Wed 4/29
7:11 am-11:24 pm
2 stops14h 13m
$384
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Sat 8/29
5:30 pm-11:04 pm
2 stops8h 34m
Spokane
Sat 9/5
2:05 pm-11:44 pm
1 stop6h 39m
$402
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Wed 6/10
5:32 am-1:18 pm
2 stops10h 46m
Spokane
Sat 6/20
5:05 pm-5:50 am
1 stop9h 45m
$402
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-JAC
BWI-IDA
BWI-SUN
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-JAC
BWI-IDA
What is the cheapest month to book a flight from Baltimore to Idaho?
Currently, September is the cheapest month in which you can book a flight from Baltimore to Idaho (average of $150). Flying from Baltimore to Idaho in November is currently the most expensive (average of $301). 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 2, 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
Comfort
8.0
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Comfort
8.0
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Comfort
8.0
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Comfort
8.0
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Comfort
8.0
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
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
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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.
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 2, 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 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$208 | Average$474 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$275 | Average$639 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$321 | Average$393 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$351 | Average$486 | FlexibilityNo cancel fee | On-time63% |