$141+ 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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — BOI
Apr 10 — Apr 171
Round-trip
1 adult, Economy
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Cheapest flights from Baltimore to IdahoExplore the most affordable flight options available from Baltimore to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 11, 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 March 11, 2026.
This Delta deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” 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 4/289:00 am
BWI
- BOI
2 stops13h 00m
Delta
Thu 5/76:00 pm
BOI
- BWI
2 stops9h 45m
Delta
Deal found 3/9![Delta logo]()
$257
This Delta deal was found by Cheapflights users on 3/6. 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.
Tue 4/2112:27 pm
BWI
- GEG
2 stops13h 48m
Delta
Tue 4/285:10 pm
GEG
- BWI
1 stop9h 50m
Delta
Deal found 3/6![Delta logo]()
$297
This Delta deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” 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 4/146:08 am
BWI
- BOI
2 stops12h 06m
Delta
Sat 4/258:59 am
BOI
- BWI
2 stops12h 26m
Delta
Deal found 3/9![Delta logo]()
$298
This American Airlines deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/215:39 am
BWI
- GEG
1 stop9h 53m
American Airlines
Tue 4/286:34 am
GEG
- BWI
2 stops13h 30m
American Airlines
Deal found 3/9![American Airlines logo]()
$302
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Sat 4/258:00 am
BWI
- BOI
2 stops10h 48m
United Airlines
Wed 4/297:11 am
BOI
- BWI
1 stop9h 11m
United Airlines
Deal found 3/6![United Airlines logo]()
$322
This Southwest deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” 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 4/141:55 pm
BWI
- BOI
2 stops10h 15m
Southwest
Sat 4/252:50 pm
BOI
- BWI
1 stop12h 30m
Southwest
Deal found 3/9![Southwest logo]()
$328
This Alaska Airlines deal was found by Cheapflights users on 3/8. 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.
Sat 10/247:51 am
BWI
- IDA
1 stop9h 38m
Alaska Airlines
Wed 10/286:15 am
IDA
- BWI
1 stop8h 56m
Alaska Airlines
Deal found 3/8![Alaska Airlines logo]()
$329
This Southwest deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” 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 5/27:25 am
BWI
- BOI
1 stop8h 45m
Southwest
Sat 5/24:50 pm
BOI
- BWI
1 stop10h 50m
Southwest
Deal found 3/10![Southwest logo]()
$332
This American Airlines deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/74:11 pm
BWI
- BOI
1 stop8h 27m
American Airlines
Tue 4/141:29 pm
BOI
- BWI
1 stop8h 27m
American Airlines
Deal found 3/9![American Airlines logo]()
$334
This Delta deal was found by Cheapflights users on 3/6. 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.
Tue 4/282:18 pm
BWI
- BOI
1 stop10h 10m
Delta
Thu 4/3011:35 pm
BOI
- BWI
1 stop8h 01m
Delta
Deal found 3/6![Delta logo]()
$337
This Southwest deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” 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 4/296:50 am
BWI
- GEG
1 stop9h 55m
Southwest
Mon 5/45:35 pm
GEG
- BWI
1 stop9h 10m
Southwest
Deal found 3/10![Southwest logo]()
$338
This Expedia deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” 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.
Wed 5/134:17 pm
BWI
- GEG
1 stop9h 49m
Alaska Airlines
Wed 5/205:00 am
GEG
- BWI
1 stop7h 17m
Alaska Airlines
Deal found 3/10![Alaska Airlines logo]()
$339
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 March 11, 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 March 11, 2026.
This Delta deal was found by Cheapflights users on 3/6. 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.
Tue 4/289:00 am
BWI
- BOI
2 stops13h 00m
Delta
Thu 5/76:00 pm
BOI
- BWI
2 stops9h 45m
Delta
Deal found 3/6![Delta logo]()
$317
This Alaska Airlines deal was found by Cheapflights users on 3/6. 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 stop10h 29m
Alaska Airlines
Thu 5/77:20 pm
BOI
- BWI
1 stop8h 24m
Alaska Airlines
Deal found 3/6![Alaska Airlines logo]()
$337
This United Airlines deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” 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 4/711:08 am
BWI
- BOI
2 stops11h 05m
United Airlines
Tue 4/142:37 pm
BOI
- BWI
1 stop6h 47m
United Airlines
Deal found 3/9![United Airlines logo]()
$342
This Southwest deal was found by Cheapflights users on 3/6. 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.
Tue 8/252:55 pm
BWI
- GEG
1 stop10h 10m
Southwest
Tue 9/224:55 pm
GEG
- BWI
1 stop10h 40m
Southwest
Deal found 3/6![Southwest logo]()
$357
This American Airlines deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” 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.
Fri 5/292:59 pm
BWI
- GEG
1 stop8h 47m
American Airlines
Mon 6/12:08 pm
GEG
- BWI
1 stop7h 03m
American Airlines
Deal found 3/10![American Airlines logo]()
$415
This Alaska Airlines deal was found by Cheapflights users on 3/6. 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 8/256:11 pm
BWI
- GEG
1 stop9h 07m
Alaska Airlines
Tue 9/157:44 pm
GEG
- BWI
1 stop7h 37m
Alaska Airlines
Deal found 3/6![Alaska Airlines logo]()
$357
This Southwest deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” 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 8/255:40 pm
BWI
- GEG
1 stop8h 15m
Southwest
Tue 9/154:55 pm
GEG
- BWI
1 stop10h 40m
Southwest
Deal found 3/9![Southwest logo]()
$357
This Delta deal was found by Cheapflights users on 3/8. 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 5/277:00 am
BWI
- GEG
1 stop8h 01m
Delta
Tue 6/27:23 pm
GEG
- BWI
2 stops13h 20m
Delta
Deal found 3/8![Delta logo]()
$362
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Sat 5/2310:44 am
BWI
- GEG
2 stops12h 46m
United Airlines
Wed 5/277:00 am
GEG
- BWI
1 stop7h 33m
United Airlines
Deal found 3/6![United Airlines logo]()
$362
This Delta deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” 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 8/2512:00 pm
BWI
- GEG
2 stops9h 17m
Delta
Tue 9/157:21 pm
GEG
- BWI
2 stops10h 10m
Delta
Deal found 3/9![Delta logo]()
$368
This Southwest deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” 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 5/19:55 am
BWI
- BOI
2 stops10h 25m
Southwest
Mon 5/47:55 pm
BOI
- BWI
1 stop7h 45m
Southwest
Deal found 3/9![Southwest logo]()
$409
This Alaska Airlines deal was found by Cheapflights users on 3/7. 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 5/154:17 pm
BWI
- BOI
1 stop9h 41m
Alaska Airlines
Mon 5/186:07 pm
BOI
- BWI
1 stop10h 21m
Alaska Airlines
Deal found 3/7![Alaska Airlines logo]()
$414
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Sat 4/256:00 am
BWI
- BOI
1 stop7h 49m
United Airlines
Tue 4/282:37 pm
BOI
- BWI
1 stop6h 47m
United Airlines
Deal found 3/6![United Airlines logo]()
$417
This Delta deal was found by Cheapflights users on 3/8. 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 4/85:40 am
BWI
- GEG
2 stops10h 20m
Delta
Sat 4/186:15 am
GEG
- BWI
2 stops14h 10m
Delta
Deal found 3/8![Delta logo]()
$393
This Alaska Airlines deal was found by Cheapflights users on 3/6. 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.
Sat 5/234:17 pm
BWI
- BOI
1 stop9h 41m
Alaska Airlines
Wed 5/274:28 pm
BOI
- BWI
1 stop20h 49m
Alaska Airlines
Deal found 3/6![Alaska Airlines logo]()
$417
This United Airlines deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” 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 6/246:15 am
BWI
- BOI
1 stop7h 17m
United Airlines
Tue 6/305:00 am
BOI
- BWI
2 stops10h 33m
United Airlines
Deal found 3/10![United Airlines logo]()
$422
This Delta deal was found by Cheapflights users on 3/6. 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.
Tue 7/146:00 am
BWI
- GEG
1 stop8h 32m
Delta
Tue 7/217:07 pm
GEG
- BWI
1 stop7h 56m
Delta
Deal found 3/6![Delta logo]()
$397
This Delta deal was found by Cheapflights users on 3/6. 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.
Wed 8/266:00 am
BWI
- GEG
2 stops10h 07m
Delta
Wed 9/236:05 am
GEG
- BWI
1 stop9h 04m
Delta
Deal found 3/6![Delta logo]()
$402
This United Airlines deal was found by Cheapflights users on 3/7. 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.
Mon 3/306:00 am
BWI
- SUN
1 stop7h 44m
United Airlines
Thu 4/212:25 pm
SUN
- BWI
1 stop6h 58m
United Airlines
Deal found 3/7![United Airlines logo]()
$451
This Alaska Airlines deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” 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 5/87:16 pm
BWI
- IDA
1 stop29h 24m
Alaska Airlines
Sun 5/106:00 am
IDA
- BWI
1 stop10h 16m
Alaska Airlines
Deal found 3/9![Alaska Airlines logo]()
$493
This Delta deal was found by Cheapflights users on 3/6. 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.
Wed 5/67:15 am
BWI
- JAC
1 stop6h 59m
Delta
Sat 5/911:35 am
JAC
- BWI
2 stops11h 22m
Delta
Deal found 3/6![Delta logo]()
$410
This United Airlines deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” 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 8/126:15 am
BWI
- BOI
1 stop7h 10m
United Airlines
Fri 8/217:01 pm
BOI
- BWI
2 stops12h 33m
United Airlines
Deal found 3/9![United Airlines logo]()
$452
This Delta deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” 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
- SUN
1 stop9h 34m
Delta
Sat 5/93:20 pm
SUN
- BWI
1 stop6h 05m
Delta
Deal found 3/10![Delta logo]()
$410
This United Airlines deal was found by Cheapflights users on 3/8. 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.
Fri 7/38:15 am
BWI
- JAC
2 stops11h 38m
United Airlines
Tue 7/71:42 pm
JAC
- BWI
1 stop7h 48m
United Airlines
Deal found 3/8![United Airlines logo]()
$458
This Delta deal was found by Cheapflights users on 3/8. 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 5/236:17 am
BWI
- BOI
1 stop8h 50m
Delta
Wed 5/276:41 pm
BOI
- BWI
1 stop9h 04m
Delta
Deal found 3/8![Delta logo]()
$424
This United Airlines deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” 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
- JAC
2 stops11h 45m
United Airlines
Wed 4/292:35 pm
JAC
- BWI
1 stop6h 49m
United Airlines
Deal found 3/9![United Airlines logo]()
$486
This United Airlines deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” 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 4/226:00 am
BWI
- JAC
2 stops9h 21m
United Airlines
Sun 4/262:35 pm
JAC
- BWI
1 stop6h 49m
United Airlines
Deal found 3/10![United Airlines logo]()
$490
This Delta deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” 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 3/238:38 am
BWI
- JAC
1 stop6h 52m
Delta
Thu 3/262:41 pm
JAC
- BWI
1 stop8h 12m
Delta
Deal found 3/9![Delta logo]()
$453
This United Airlines deal was found by Cheapflights users on 3/7. 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.
Thu 3/266:20 am
BWI
- SUN
1 stop7h 33m
United Airlines
Fri 4/32:24 pm
SUN
- BWI
1 stop7h 00m
United Airlines
Deal found 3/7![United Airlines logo]()
$491
This Alaska Airlines deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” 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 4/37:04 pm
BWI
- IDA
1 stop23h 15m
Alaska Airlines
Fri 4/106:00 am
IDA
- BWI
1 stop10h 04m
Alaska Airlines
Deal found 3/10![Alaska Airlines logo]()
$725
Last-minute flights from Baltimore to IdahoDiscover last-minute flight deals from Baltimore to Idaho. Data last updated March 11, 2026 and is based on user searches.
Discover last-minute flight deals from Baltimore to Idaho. Data last updated March 11, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/74:11 pm
BWI
- BOI
1 stop8h 27m
American Airlines
Tue 4/141:29 pm
BOI
- BWI
1 stop8h 27m
American Airlines
Deal found 3/9![American Airlines logo]()
$334
This United Airlines deal was found by Cheapflights users on 3/6. 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 4/74:18 pm
BWI
- JAC
1 stop6h 35m
United Airlines
Tue 4/142:35 pm
JAC
- BWI
1 stop6h 49m
United Airlines
Deal found 3/6![United Airlines logo]()
$344
This Delta deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” 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 4/146:08 am
BWI
- BOI
2 stops12h 06m
Delta
Sat 4/258:59 am
BOI
- BWI
2 stops12h 26m
Delta
Deal found 3/9![Delta logo]()
$298
This Southwest deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” 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 4/141:55 pm
BWI
- BOI
2 stops10h 15m
Southwest
Sat 4/252:50 pm
BOI
- BWI
1 stop12h 30m
Southwest
Deal found 3/9![Southwest logo]()
$328
This Delta deal was found by Cheapflights users on 3/6. 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.
Tue 4/2112:27 pm
BWI
- GEG
2 stops13h 48m
Delta
Tue 4/285:10 pm
GEG
- BWI
1 stop9h 50m
Delta
Deal found 3/6![Delta logo]()
$297
This American Airlines deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/215:39 am
BWI
- GEG
1 stop9h 53m
American Airlines
Tue 4/286:34 am
GEG
- BWI
2 stops13h 30m
American Airlines
Deal found 3/9![American Airlines logo]()
$302
This Southwest deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” 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 4/239:40 am
BWI
- BOI
1 stop10h 40m
Southwest
Sat 4/252:50 pm
BOI
- BWI
1 stop12h 30m
Southwest
Deal found 3/10![Southwest logo]()
$342
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Sat 4/258:00 am
BWI
- BOI
2 stops10h 48m
United Airlines
Wed 4/297:11 am
BOI
- BWI
1 stop9h 11m
United Airlines
Deal found 3/6![United Airlines logo]()
$322
This Delta deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” 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 4/289:00 am
BWI
- BOI
2 stops13h 00m
Delta
Thu 5/76:00 pm
BOI
- BWI
2 stops9h 45m
Delta
Deal found 3/9![Delta logo]()
$257
This Delta deal was found by Cheapflights users on 3/6. 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.
Tue 4/282:18 pm
BWI
- BOI
1 stop10h 10m
Delta
Thu 4/3011:35 pm
BOI
- BWI
1 stop8h 01m
Delta
Deal found 3/6![Delta logo]()
$337
This Southwest deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” 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 4/296:50 am
BWI
- GEG
1 stop9h 55m
Southwest
Mon 5/45:35 pm
GEG
- BWI
1 stop9h 10m
Southwest
Deal found 3/10![Southwest logo]()
$338
This Southwest deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” 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 4/304:20 pm
BWI
- BOI
2 stops9h 10m
Southwest
Tue 5/55:15 pm
BOI
- BWI
2 stops10h 05m
Southwest
Deal found 3/9![Southwest logo]()
$347
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 March 11, 2026.
Search for one-way flight options from Baltimore to Idaho. Find affordable one-way fares based on user searches. Data last updated March 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/8. 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 4/1512:17 pm
BWI
- GEG
2 stops35h 12m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 3/7. 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 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 3/7![Multiple Airlines logo]()
$146
This American Airlines deal was found by Cheapflights users on 3/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/155:39 am
BWI
- GEG
1 stop9h 53m
American Airlines
Deal found 3/8![American Airlines logo]()
$149
This Delta deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” 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 4/95:40 am
BWI
- BOI
2 stops12h 23m
Delta
Deal found 3/9![Delta logo]()
$149
This United Airlines deal was found by Cheapflights users on 3/7. 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 4/1511:08 am
BWI
- GEG
2 stops13h 03m
United Airlines
Deal found 3/7![United Airlines logo]()
$154
This United Airlines deal was found by Cheapflights users on 3/8. 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 4/84:18 pm
BWI
- BOI
1 stop7h 04m
United Airlines
Deal found 3/8![United Airlines logo]()
$159
This Southwest deal was found by Cheapflights users on 3/8. 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 4/42:50 pm
BWI
- BOI
2 stops10h 15m
Southwest
Deal found 3/8![Southwest logo]()
$164
This Kiwi.com deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” 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 4/77:40 pm
BWI
- BOI
2 stops41h 28m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$167
This United Airlines deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” 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 4/74:18 pm
BWI
- BOI
1 stop8h 17m
United Airlines
Deal found 3/10![United Airlines logo]()
$169
This Delta deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:00 am
BWI
- GEG
1 stop8h 24m
Delta
Deal found 3/9![Delta logo]()
$179
This Southwest deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” 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 4/96:45 am
BWI
- BOI
1 stop10h 55m
Southwest
Deal found 3/10![Southwest logo]()
$179
This American Airlines deal was found by Cheapflights users on 3/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/46:50 am
BWI
- SUN
1 stop8h 05m
American Airlines
Deal found 3/8![American Airlines logo]()
$181
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 March 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $257 (Delta) |
One-way from | $141 (Kiwi.com) |
Popular in | December |
Cheapest in | April |
Average price | $527 |
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 March 11, 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 4/28
9:00 am-8:00 pm
2 stops13h 00m
Boise Air Term. Gowen Fld
Thu 5/7
6:00 pm-5:45 am
2 stops9h 45m
$317
BaltimoreBoise
BWI - BOI
BWIBOI
Baltimore/Washington
Tue 4/28
7:04 am-3:33 pm
1 stop10h 29m
Boise Air Term. Gowen Fld
Thu 5/7
7:20 pm-5:44 am
1 stop8h 24m
$337
BaltimoreBoise
BWI - BOI
BWIBOI
Baltimore/Washington
Tue 4/7
11:08 am-8:13 pm
2 stops11h 05m
Boise Air Term. Gowen Fld
Tue 4/14
2:37 pm-11:24 pm
1 stop6h 47m
$342
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Tue 8/25
2:55 pm-10:05 pm
1 stop10h 10m
Spokane
Tue 9/22
4:55 pm-6:35 am
1 stop10h 40m
$357
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Tue 8/25
6:11 pm-12:18 am
1 stop9h 07m
Spokane
Tue 9/15
7:44 pm-6:21 am
1 stop7h 37m
$357
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Tue 8/25
5:40 pm-10:55 pm
1 stop8h 15m
Spokane
Tue 9/15
4:55 pm-6:35 am
1 stop10h 40m
$357
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Wed 5/27
7:00 am-12:01 pm
1 stop8h 01m
Spokane
Tue 6/2
7:23 pm-11:43 am
2 stops13h 20m
$362
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Sat 5/23
10:44 am-8:30 pm
2 stops12h 46m
Spokane
Wed 5/27
7:00 am-5:33 pm
1 stop7h 33m
$362
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Tue 8/25
12:00 pm-6:17 pm
2 stops9h 17m
Spokane
Tue 9/15
7:21 pm-8:31 am
2 stops10h 10m
$368
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Wed 4/8
5:40 am-1:00 pm
2 stops10h 20m
Spokane
Sat 4/18
6:15 am-11:25 pm
2 stops14h 10m
$393
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Baltimore to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from Baltimore with our price prediction graph.
BWI-BOI
BWI-GEG
BWI-SUN
BWI-IDA
BWI-JAC
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Baltimore to Idaho
BWI-USID
BWI-BOI
BWI-GEG
BWI-SUN
BWI-IDA
What is the cheapest month to book a flight from Baltimore to Idaho?
Currently, 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.
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 March 11, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Southwest, andDelta from Baltimore to Idaho by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Entertainment
7.0
Food
7.1
Boarding
8.1
Comfort
7.8
Overall
8.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Crew
8.5
Entertainment
7.0
Food
7.1
Boarding
8.1
Comfort
7.8
Overall
8.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Crew
8.5
Entertainment
7.0
Food
7.1
Boarding
8.1
Comfort
7.8
Overall
8.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Crew
8.5
Entertainment
7.0
Food
7.1
Boarding
8.1
Comfort
7.8
Overall
8.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Crew
8.5
Entertainment
7.0
Food
7.1
Boarding
8.1
Comfort
7.8
Overall
8.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
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 March 11, 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 March 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$208 | Average$470 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$275 | Average$589 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$321 | Average$372 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$346 | Average$479 | FlexibilityNo cancel fee | On-time63% |