$137+ 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 9 — May 161
Round-trip
1 adult, Economy
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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 9, 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 9, 2026.
This Southwest deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/289:05 am
BWI
- BOI
1 stop8h 20m
Southwest
Tue 5/52:00 pm
BOI
- BWI
1 stop8h 25m
Southwest
Deal found 4/7![Southwest logo]()
$263
This Delta deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/286:00 am
BWI
- BOI
1 stop9h 07m
Delta
Tue 5/511:35 pm
BOI
- BWI
1 stop8h 01m
Delta
Deal found 4/7![Delta logo]()
$283
This Delta deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:03 am
BWI
- BOI
2 stops10h 23m
Delta
Sat 5/22:18 pm
BOI
- BWI
1 stop8h 20m
Delta
Deal found 4/8![Delta logo]()
$288
This Delta deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:00 pm
BWI
- BOI
1 stop6h 29m
Delta
Mon 9/711:30 pm
BOI
- BWI
1 stop7h 46m
Delta
Deal found 4/8![Delta logo]()
$291
This Southwest deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/295:05 pm
BWI
- BOI
2 stops9h 20m
Southwest
Wed 5/65:00 pm
BOI
- BWI
2 stops10h 30m
Southwest
Deal found 4/8![Southwest logo]()
$293
This Delta deal was found by Cheapflights users on 4/4. Clicking the “Pick Dates” 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 7/76:20 am
BWI
- BOI
1 stop6h 37m
Delta
Tue 7/146:42 pm
BOI
- BWI
2 stops12h 42m
Delta
Deal found 4/4![Delta logo]()
$296
This Delta deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:00 am
BWI
- GEG
1 stop7h 41m
Delta
Sat 5/91:30 pm
GEG
- BWI
1 stop6h 55m
Delta
Deal found 4/8![Delta logo]()
$297
This Delta deal was found by Cheapflights users on 4/4. Clicking the “Pick Dates” 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 8/201:00 pm
BWI
- BOI
2 stops12h 56m
Delta
Mon 8/2411:30 pm
BOI
- BWI
2 stops10h 11m
Delta
Deal found 4/4![Delta logo]()
$301
This Delta deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 4/286:00 am
BWI
- GEG
1 stop8h 41m
Delta
Wed 5/135:37 pm
GEG
- BWI
2 stops9h 08m
Delta
Deal found 4/5![Delta logo]()
$302
This deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/286:00 am
BWI
- BOI
1 stop9h 07m
Delta
Sat 5/23:23 pm
BOI
- BWI
1 stop6h 03m
Delta
Deal found 4/6![Delta logo]()
$305
This Delta deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:10 am
BWI
- BOI
1 stop9h 24m
Delta
Mon 9/1411:30 pm
BOI
- BWI
1 stop7h 46m
Delta
Deal found 4/8![Delta logo]()
$306
This Southwest deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/62:50 pm
BWI
- GEG
2 stops11h 05m
Southwest
Wed 5/132:40 pm
GEG
- BWI
1 stop12h 05m
Southwest
Deal found 4/8![Southwest logo]()
$308
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 9, 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 9, 2026.
This Delta deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 4/286:00 am
BWI
- GEG
1 stop8h 41m
Delta
Wed 5/1310:40 pm
GEG
- BWI
1 stop7h 43m
Delta
Deal found 4/5![Delta logo]()
$297
This Southwest deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/63:25 pm
BWI
- GEG
1 stop11h 00m
Southwest
Wed 5/132:25 pm
GEG
- BWI
1 stop12h 15m
Southwest
Deal found 4/8![Southwest logo]()
$302
This Alaska Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
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 4/7![Alaska Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/68:22 am
BWI
- WYS
1 stop7h 06m
United Airlines
Sat 5/92:03 pm
WYS
- BWI
1 stop7h 24m
United Airlines
Deal found 4/8![United Airlines logo]()
$374
This Delta deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/66:03 am
BWI
- GEG
2 stops10h 01m
Delta
Wed 5/135:37 pm
GEG
- BWI
2 stops9h 08m
Delta
Deal found 4/8![Delta logo]()
$327
This Delta deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:59 pm
BWI
- GEG
1 stop7h 07m
Delta
Mon 6/110:40 pm
GEG
- BWI
2 stops10h 03m
Delta
Deal found 4/6![Delta logo]()
$334
This Southwest deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/247:00 am
BWI
- BOI
1 stop9h 55m
Southwest
Sun 5/313:25 pm
BOI
- BWI
1 stop7h 55m
Southwest
Deal found 4/8![Southwest logo]()
$378
This Alaska Airlines deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:04 am
BWI
- BOI
1 stop8h 48m
Alaska Airlines
Wed 4/297:20 pm
BOI
- BWI
1 stop8h 24m
Alaska Airlines
Deal found 4/6![Alaska Airlines logo]()
$390
This United Airlines deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2811:08 am
BWI
- BOI
2 stops12h 14m
United Airlines
Wed 4/297:11 am
BOI
- BWI
1 stop9h 11m
United Airlines
Deal found 4/6![United Airlines logo]()
$398
This Southwest deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/231:15 pm
BWI
- GEG
2 stops11h 20m
Southwest
Sat 5/3011:05 am
GEG
- BWI
1 stop15h 25m
Southwest
Deal found 4/6![Southwest logo]()
$384
This Delta deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/207:00 am
BWI
- BOI
1 stop7h 43m
Delta
Tue 5/2611:39 pm
BOI
- BWI
1 stop7h 44m
Delta
Deal found 4/8![Delta logo]()
$351
This United Airlines deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/214:23 pm
BWI
- SUN
1 stop7h 03m
United Airlines
Thu 7/238:00 am
SUN
- BWI
2 stops14h 48m
United Airlines
Deal found 4/8![United Airlines logo]()
$406
This Southwest deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/37:30 am
BWI
- BOI
1 stop8h 05m
Southwest
Sat 5/92:50 pm
BOI
- BWI
1 stop6h 15m
Southwest
Deal found 4/6![Southwest logo]()
$397
This Delta deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/125:32 pm
BWI
- GEG
2 stops9h 27m
Delta
Sat 6/205:05 pm
GEG
- BWI
1 stop9h 45m
Delta
Deal found 4/5![Delta logo]()
$369
This United Airlines deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” 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 5/54:12 pm
BWI
- GEG
1 stop8h 04m
United Airlines
Wed 5/61:41 pm
GEG
- BWI
1 stop6h 46m
United Airlines
Deal found 4/3![United Airlines logo]()
$407
This Delta deal was found by Cheapflights users on 4/4. Clicking the “Pick Dates” 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 6/1011:35 am
BWI
- GEG
2 stops9h 48m
Delta
Sat 6/205:05 pm
GEG
- BWI
1 stop9h 45m
Delta
Deal found 4/4![Delta logo]()
$369
This United Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 5/56:15 am
BWI
- IDA
2 stops11h 28m
United Airlines
Mon 5/112:31 pm
IDA
- BWI
1 stop6h 56m
United Airlines
Deal found 4/5![United Airlines logo]()
$429
This Delta deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 6/246:19 am
BWI
- BOI
1 stop6h 39m
Delta
Mon 7/611:45 pm
BOI
- BWI
1 stop9h 02m
Delta
Deal found 4/5![Delta logo]()
$379
This Alaska Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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
Tue 5/56:00 am
IDA
- BWI
1 stop10h 16m
Alaska Airlines
Deal found 4/5![Alaska Airlines logo]()
$570
This United Airlines deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2111:08 am
BWI
- IDA
2 stops11h 56m
United Airlines
Sat 4/256:45 am
IDA
- BWI
1 stop6h 26m
United Airlines
Deal found 4/6![United Airlines logo]()
$440
This Delta deal was found by Cheapflights users on 4/4. Clicking the “Pick Dates” 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 5/236:00 am
BWI
- BOI
1 stop8h 43m
Delta
Wed 5/2711:39 pm
BOI
- BWI
1 stop9h 05m
Delta
Deal found 4/4![Delta logo]()
$391
This Alaska Airlines deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 stop21h 44m
Alaska Airlines
Deal found 4/8![Alaska Airlines logo]()
$606
This United Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 8/118:00 am
BWI
- JAC
1 stop9h 28m
United Airlines
Tue 8/181:45 pm
JAC
- BWI
2 stops8h 58m
United Airlines
Deal found 4/5![United Airlines logo]()
$460
This Delta deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 6/76:19 am
BWI
- BOI
1 stop6h 39m
Delta
Sun 6/711:45 pm
BOI
- BWI
1 stop7h 41m
Delta
Deal found 4/5![Delta logo]()
$394
This Alaska Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 5/37:16 pm
BWI
- IDA
1 stop22h 13m
Alaska Airlines
Tue 5/56:00 am
IDA
- BWI
1 stop10h 16m
Alaska Airlines
Deal found 4/5![Alaska Airlines logo]()
$636
This Delta deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/222:18 pm
BWI
- BOI
1 stop10h 10m
Delta
Tue 5/1211:39 pm
BOI
- BWI
1 stop9h 05m
Delta
Deal found 4/8![Delta logo]()
$395
This United Airlines deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/288:00 am
BWI
- IDA
1 stop7h 32m
United Airlines
Fri 5/12:31 pm
IDA
- BWI
1 stop6h 56m
United Airlines
Deal found 4/6![United Airlines logo]()
$490
This Alaska Airlines deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:07 pm
BWI
- SUN
1 stop17h 31m
Alaska Airlines
Mon 7/2010:20 am
SUN
- BWI
1 stop17h 21m
Alaska Airlines
Deal found 4/6![Alaska Airlines logo]()
$659
This United Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/228:00 am
BWI
- SUN
1 stop7h 35m
United Airlines
Sun 4/262:24 pm
SUN
- BWI
1 stop7h 00m
United Airlines
Deal found 4/7![United Airlines logo]()
$501
This United Airlines deal was found by Cheapflights users on 4/4. Clicking the “Pick Dates” 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 4/288:00 am
BWI
- SUN
1 stop7h 35m
United Airlines
Fri 5/12:30 pm
SUN
- BWI
1 stop6h 57m
United Airlines
Deal found 4/4![United Airlines logo]()
$501
Last-minute flights from Baltimore to IdahoDiscover last-minute flight deals from Baltimore to Idaho. Data last updated April 9, 2026 and is based on user searches.
Discover last-minute flight deals from Baltimore to Idaho. Data last updated April 9, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/289:05 am
BWI
- BOI
1 stop8h 20m
Southwest
Tue 5/52:00 pm
BOI
- BWI
1 stop8h 25m
Southwest
Deal found 4/7![Southwest logo]()
$263
This Delta deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/286:00 am
BWI
- BOI
1 stop9h 07m
Delta
Tue 5/511:35 pm
BOI
- BWI
1 stop8h 01m
Delta
Deal found 4/7![Delta logo]()
$283
This Delta deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 4/286:00 am
BWI
- GEG
1 stop8h 41m
Delta
Wed 5/1310:40 pm
GEG
- BWI
1 stop7h 43m
Delta
Deal found 4/5![Delta logo]()
$297
This deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/286:00 am
BWI
- BOI
1 stop9h 07m
Delta
Sat 5/23:23 pm
BOI
- BWI
1 stop6h 03m
Delta
Deal found 4/6![Delta logo]()
$305
This Alaska Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 4/287:04 am
BWI
- BOI
1 stop8h 48m
Alaska Airlines
Thu 4/306:08 pm
BOI
- BWI
1 stop9h 36m
Alaska Airlines
Deal found 4/5![Alaska Airlines logo]()
$323
This Delta deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:03 am
BWI
- BOI
2 stops10h 23m
Delta
Sat 5/22:18 pm
BOI
- BWI
1 stop8h 20m
Delta
Deal found 4/8![Delta logo]()
$288
This Southwest deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/295:05 pm
BWI
- BOI
2 stops9h 20m
Southwest
Wed 5/65:00 pm
BOI
- BWI
2 stops10h 30m
Southwest
Deal found 4/8![Southwest logo]()
$293
This Southwest deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/293:25 pm
BWI
- BOI
1 stop11h 00m
Southwest
Sun 5/33:25 pm
BOI
- BWI
1 stop7h 55m
Southwest
Deal found 4/7![Southwest logo]()
$325
This Southwest deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/62:50 pm
BWI
- GEG
2 stops11h 05m
Southwest
Wed 5/132:40 pm
GEG
- BWI
1 stop12h 05m
Southwest
Deal found 4/8![Southwest logo]()
$308
This Delta deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/66:03 am
BWI
- GEG
2 stops10h 01m
Delta
Wed 5/135:37 pm
GEG
- BWI
2 stops9h 08m
Delta
Deal found 4/8![Delta logo]()
$327
This Delta deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/126:59 pm
BWI
- BOI
1 stop6h 47m
Delta
Sun 5/1711:39 pm
BOI
- BWI
1 stop7h 44m
Delta
Deal found 4/7![Delta logo]()
$326
This Delta deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 6/110:40 pm
GEG
- BWI
1 stop7h 43m
Delta
Deal found 4/5![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 9, 2026.
Search for one-way flight options from Baltimore to Idaho. Find affordable one-way fares based on user searches. Data last updated April 9, 2026.
This Southwest deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/274:20 pm
BWI
- BOI
2 stops9h 10m
Southwest
Deal found 4/6![Southwest logo]()
$137
This Delta deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/126:59 pm
BWI
- BOI
1 stop6h 47m
Delta
Deal found 4/8![Delta logo]()
$142
This Southwest deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/22:10 pm
BWI
- GEG
1 stop10h 25m
Southwest
Deal found 4/8![Southwest logo]()
$149
This Delta deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/26:03 am
BWI
- GEG
2 stops9h 24m
Delta
Deal found 4/8![Delta logo]()
$154
This Southwest deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/299:40 am
BWI
- GEG
1 stop10h 20m
Southwest
Deal found 4/7![Southwest logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2212:17 pm
BWI
- GEG
2 stops35h 12m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$160
This Southwest deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 5/16:25 am
BWI
- GEG
1 stop10h 45m
Southwest
Deal found 4/5![Southwest logo]()
$164
This Kiwi.com deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 4/8![Frontier logo]()
$168
This Delta deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/306:03 am
BWI
- GEG
2 stops10h 01m
Delta
Deal found 4/8![Delta logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/245:32 pm
BWI
- GEG
2 stops29h 25m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$172
This Alaska Airlines deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/144:17 pm
BWI
- BOI
1 stop9h 41m
Alaska Airlines
Deal found 4/8![Alaska Airlines logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/215:35 pm
BWI
- GEG
2 stops53h 54m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$175
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 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $263 (Southwest) |
One-way from | $137 (Southwest) |
Popular in | December |
Cheapest in | April |
Average price | $245 |
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 9, 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
Tue 4/28
6:00 am-11:41 am
1 stop8h 41m
Spokane
Wed 5/13
10:40 pm-9:23 am
1 stop7h 43m
$297
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Wed 5/6
3:25 pm-11:25 pm
1 stop11h 00m
Spokane
Wed 5/13
2:25 pm-5:40 am
1 stop12h 15m
$302
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Wed 5/6
6:03 am-1:04 pm
2 stops10h 01m
Spokane
Wed 5/13
5:37 pm-5:45 am
2 stops9h 08m
$327
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
$329
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Fri 5/29
6:59 pm-11:06 pm
1 stop7h 07m
Spokane
Mon 6/1
10:40 pm-11:43 am
2 stops10h 03m
$334
BaltimoreBoise
BWI - BOI
BWIBOI
Baltimore/Washington
Wed 5/20
7:00 am-12:43 pm
1 stop7h 43m
Boise Air Term. Gowen Fld
Tue 5/26
11:39 pm-9:23 am
1 stop7h 44m
$351
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Fri 6/12
5:32 pm-11:59 pm
2 stops9h 27m
Spokane
Sat 6/20
5:05 pm-5:50 am
1 stop9h 45m
$369
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Wed 6/10
11:35 am-6:23 pm
2 stops9h 48m
Spokane
Sat 6/20
5:05 pm-5:50 am
1 stop9h 45m
$369
BaltimoreWest Yellowstone
BWI - WYS
BWIWYS
Baltimore/Washington
Wed 5/6
8:22 am-1:28 pm
1 stop7h 06m
West Yellowstone
Sat 5/9
2:03 pm-11:27 pm
1 stop7h 24m
$374
BaltimoreBoise
BWI - BOI
BWIBOI
Baltimore/Washington
Sun 5/24
7:00 am-2:55 pm
1 stop9h 55m
Boise Air Term. Gowen Fld
Sun 5/31
3:25 pm-1:20 am
1 stop7h 55m
$378
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-WYS
BWI-SUN
BWI-IDA
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Baltimore to Idaho
BWI-USID
BWI-BOI
BWI-GEG
BWI-WYS
BWI-SUN
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 9, 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.
Entertainment
7.5
Comfort
8.0
Overall
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Comfort
8.0
Overall
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Comfort
8.0
Overall
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Comfort
8.0
Overall
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Comfort
8.0
Overall
8.0
Crew
8.6
Boarding
8.1
Food
7.0
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
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 9, 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 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$208 | Average$458 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$275 | Average$634 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$321 | Average$393 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$351 | Average$487 | FlexibilityNo cancel fee | On-time63% |