$129+ 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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — BOI
Mar 13 — Mar 201
1 adult, Economy
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Find cheap flights from Baltimore to Idaho with Cheapflights
1. Tell us where you want to go
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 February 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 February 11, 2026.
This Delta deal was found by Cheapflights users on 2/8. 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 3/146:09 am
BWI
- GEG
1 stop10h 01m
Delta
Wed 3/185:00 pm
GEG
- BWI
1 stop9h 51m
Delta
Deal found 2/8![Delta logo]()
$257
This Delta deal was found by Cheapflights users on 2/9. 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 3/32:58 pm
BWI
- BOI
1 stop7h 57m
Delta
Sat 3/73:01 pm
BOI
- BWI
1 stop6h 11m
Delta
Deal found 2/9![Delta logo]()
$257
This Delta deal was found by Cheapflights users on 2/8. 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 5/125:34 am
BWI
- BOI
2 stops9h 45m
Delta
Sat 5/162:25 pm
BOI
- BWI
1 stop8h 03m
Delta
Deal found 2/8![Delta logo]()
$262
This Delta deal was found by Cheapflights users on 2/9. 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.
Wed 4/297:15 am
BWI
- BOI
1 stop6h 47m
Delta
Sat 5/25:34 am
BOI
- BWI
1 stop6h 17m
Delta
Deal found 2/9![Delta logo]()
$267
This Delta deal was found by Cheapflights users on 2/9. 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 4/2112:27 pm
BWI
- GEG
2 stops13h 38m
Delta
Tue 4/2812:36 pm
GEG
- BWI
1 stop6h 54m
Delta
Deal found 2/9![Delta logo]()
$272
This United Airlines deal was found by Cheapflights users on 2/10. 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 4/214:18 pm
BWI
- GEG
1 stop7h 53m
United Airlines
Tue 4/281:43 pm
GEG
- BWI
1 stop6h 41m
United Airlines
Deal found 2/10![United Airlines logo]()
$277
This eDestinos deal was found by Cheapflights users on 2/8. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/103:19 pm
BWI
- BOI
2 stops46h 01m
Frontier
Sun 5/1011:53 am
BOI
- BWI
2 stops51h 06m
Frontier
Deal found 2/8![Frontier logo]()
$277
This American Airlines deal was found by Cheapflights users on 2/10. 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.
Tue 4/215:39 am
BWI
- GEG
1 stop9h 50m
American Airlines
Tue 4/286:00 am
GEG
- BWI
2 stops14h 04m
American Airlines
Deal found 2/10![American Airlines logo]()
$295
This Travelocity deal was found by Cheapflights users on 2/10. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/135:30 pm
BWI
- GEG
1 stop8h 36m
Alaska Airlines
Wed 5/203:10 pm
GEG
- BWI
1 stop12h 18m
Alaska Airlines
Deal found 2/10![Alaska Airlines logo]()
$297
This Delta deal was found by Cheapflights users on 2/9. 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 3/26:05 am
BWI
- BOI
1 stop9h 53m
Delta
Sat 3/73:01 pm
BOI
- BWI
1 stop6h 11m
Delta
Deal found 2/9![Delta logo]()
$297
This Delta deal was found by Cheapflights users on 2/9. 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 3/36:00 am
BWI
- BOI
2 stops9h 58m
Delta
Mon 3/911:30 pm
BOI
- BWI
1 stop9h 17m
Delta
Deal found 2/9![Delta logo]()
$302
This American Airlines deal was found by Cheapflights users on 2/10. 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.
Mon 3/93:21 pm
BWI
- GEG
1 stop8h 51m
American Airlines
Wed 3/116:00 am
GEG
- BWI
1 stop9h 13m
American Airlines
Deal found 2/10![American Airlines logo]()
$307
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 February 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 February 11, 2026.
This Delta deal was found by Cheapflights users on 2/9. 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.
Wed 3/46:00 am
BWI
- BOI
1 stop8h 28m
Delta
Sat 3/73:01 pm
BOI
- BWI
1 stop6h 11m
Delta
Deal found 2/9![Delta logo]()
$257
This United Airlines deal was found by Cheapflights users on 2/10. 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 4/214:18 pm
BWI
- GEG
1 stop7h 53m
United Airlines
Tue 4/281:43 pm
GEG
- BWI
1 stop6h 41m
United Airlines
Deal found 2/10![United Airlines logo]()
$277
This Alaska Airlines deal was found by Cheapflights users on 2/9. 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.
Tue 4/287:04 am
BWI
- BOI
1 stop10h 29m
Alaska Airlines
Thu 5/76:08 pm
BOI
- BWI
1 stop9h 36m
Alaska Airlines
Deal found 2/9![Alaska Airlines logo]()
$321
This Southwest deal was found by Cheapflights users on 2/9. 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.
Wed 3/115:15 pm
BWI
- BOI
1 stop7h 05m
Southwest
Wed 3/185:55 pm
BOI
- BWI
1 stop9h 50m
Southwest
Deal found 2/9![Southwest logo]()
$323
This American Airlines deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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 3/36:55 am
BWI
- SUN
1 stop7h 59m
American Airlines
Sat 3/71:27 pm
SUN
- BWI
1 stop8h 02m
American Airlines
Deal found 2/11![American Airlines logo]()
$350
This Delta deal was found by Cheapflights users on 2/8. 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 5/127:00 am
BWI
- BOI
1 stop8h 19m
Delta
Sat 5/162:25 pm
BOI
- BWI
1 stop8h 03m
Delta
Deal found 2/8![Delta logo]()
$257
This Delta deal was found by Cheapflights users on 2/9. 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 3/32:58 pm
BWI
- BOI
1 stop7h 57m
Delta
Sat 3/73:01 pm
BOI
- BWI
1 stop6h 11m
Delta
Deal found 2/9![Delta logo]()
$257
This United Airlines deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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 stop7h 04m
United Airlines
Sat 4/117:11 am
BOI
- BWI
1 stop7h 57m
United Airlines
Deal found 2/11![United Airlines logo]()
$312
This Delta deal was found by Cheapflights users on 2/9. 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.
Wed 4/297:15 am
BWI
- BOI
1 stop6h 47m
Delta
Sat 5/212:52 pm
BOI
- BWI
1 stop8h 33m
Delta
Deal found 2/9![Delta logo]()
$267
This United Airlines deal was found by Cheapflights users on 2/9. 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 3/114:03 pm
BWI
- BOI
1 stop8h 40m
United Airlines
Wed 3/186:24 am
BOI
- BWI
2 stops12h 29m
United Airlines
Deal found 2/9![United Airlines logo]()
$331
This Delta deal was found by Cheapflights users on 2/9. 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 4/216:03 am
BWI
- GEG
2 stops10h 00m
Delta
Tue 4/2810:40 pm
GEG
- BWI
2 stops10h 01m
Delta
Deal found 2/9![Delta logo]()
$278
This Travelocity deal was found by Cheapflights users on 2/9. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/15:30 pm
BWI
- IDA
1 stop21h 36m
Alaska Airlines
Fri 6/54:08 pm
IDA
- BWI
1 stop21h 31m
Alaska Airlines
Deal found 2/9![Alaska Airlines logo]()
$399
This American Airlines deal was found by Cheapflights users on 2/9. 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.
Wed 3/115:00 am
BWI
- SUN
1 stop9h 54m
American Airlines
Tue 3/177:40 am
SUN
- BWI
2 stops13h 15m
American Airlines
Deal found 2/9![American Airlines logo]()
$400
This United Airlines deal was found by Cheapflights users on 2/9. 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 4/78:00 am
BWI
- SUN
1 stop7h 35m
United Airlines
Tue 5/122:30 pm
SUN
- BWI
1 stop6h 57m
United Airlines
Deal found 2/9![United Airlines logo]()
$341
This Delta deal was found by Cheapflights users on 2/9. 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 3/26:05 am
BWI
- BOI
1 stop9h 53m
Delta
Sat 3/73:01 pm
BOI
- BWI
1 stop6h 11m
Delta
Deal found 2/9![Delta logo]()
$297
This United Airlines deal was found by Cheapflights users on 2/10. 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.
Fri 3/134:03 pm
BWI
- GEG
1 stop8h 15m
United Airlines
Wed 3/187:02 am
GEG
- BWI
2 stops10h 51m
United Airlines
Deal found 2/10![United Airlines logo]()
$344
This American Airlines deal was found by Cheapflights users on 2/8. 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 2/216:00 am
BWI
- JAC
1 stop8h 38m
American Airlines
Wed 2/251:44 pm
JAC
- BWI
1 stop6h 09m
American Airlines
Deal found 2/8![American Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 2/9. 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 3/36:00 am
BWI
- BOI
2 stops9h 58m
Delta
Mon 3/911:30 pm
BOI
- BWI
1 stop9h 17m
Delta
Deal found 2/9![Delta logo]()
$302
This United Airlines deal was found by Cheapflights users on 2/9. 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 2/248:00 am
BWI
- IDA
1 stop7h 30m
United Airlines
Sat 2/282:40 pm
IDA
- BWI
1 stop6h 45m
United Airlines
Deal found 2/9![United Airlines logo]()
$359
This Alaska Airlines deal was found by Cheapflights users on 2/9. 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.
Thu 4/167:11 pm
BWI
- IDA
1 stop23h 08m
Alaska Airlines
Sat 4/184:59 pm
IDA
- BWI
2 stops16h 12m
Alaska Airlines
Deal found 2/9![Alaska Airlines logo]()
$499
This Delta deal was found by Cheapflights users on 2/10. 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 3/126:17 am
BWI
- GEG
1 stop9h 53m
Delta
Tue 3/175:00 pm
GEG
- BWI
1 stop9h 51m
Delta
Deal found 2/10![Delta logo]()
$317
This United Airlines deal was found by Cheapflights users on 2/8. 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 4/228:00 am
BWI
- JAC
1 stop7h 21m
United Airlines
Sat 4/252:35 pm
JAC
- BWI
1 stop6h 49m
United Airlines
Deal found 2/8![United Airlines logo]()
$359
This Alaska Airlines deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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 4/17:04 pm
BWI
- IDA
1 stop23h 15m
Alaska Airlines
Tue 4/74:59 pm
IDA
- BWI
1 stop23h 05m
Alaska Airlines
Deal found 2/11![Alaska Airlines logo]()
$504
This Delta deal was found by Cheapflights users on 2/8. 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 3/146:09 am
BWI
- GEG
1 stop10h 01m
Delta
Thu 3/192:15 pm
GEG
- BWI
1 stop6h 44m
Delta
Deal found 2/8![Delta logo]()
$322
This United Airlines deal was found by Cheapflights users on 2/9. 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 2/248:00 am
BWI
- JAC
1 stop7h 21m
United Airlines
Sat 2/287:40 am
JAC
- BWI
2 stops11h 13m
United Airlines
Deal found 2/9![United Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 2/8. 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 3/145:40 am
BWI
- GEG
2 stops10h 30m
Delta
Wed 3/187:15 pm
GEG
- BWI
1 stop7h 36m
Delta
Deal found 2/8![Delta logo]()
$327
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Thu 3/124:03 pm
BWI
- GEG
1 stop8h 15m
United Airlines
Mon 3/1612:41 pm
GEG
- BWI
2 stops13h 24m
United Airlines
Deal found 2/9![United Airlines logo]()
$366
This Delta deal was found by Cheapflights users on 2/9. 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.
Wed 4/85:40 am
BWI
- SUN
2 stops8h 14m
Delta
Sat 5/912:39 pm
SUN
- BWI
1 stop8h 46m
Delta
Deal found 2/9![Delta logo]()
$346
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Fri 2/274:09 pm
BWI
- JAC
1 stop6h 50m
United Airlines
Tue 3/32:40 pm
JAC
- BWI
1 stop6h 45m
United Airlines
Deal found 2/9![United Airlines logo]()
$412
This Delta deal was found by Cheapflights users on 2/9. 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 3/126:17 am
BWI
- GEG
1 stop9h 53m
Delta
Mon 3/1610:40 pm
GEG
- BWI
1 stop7h 59m
Delta
Deal found 2/9![Delta logo]()
$371
Last-minute flights from Baltimore to IdahoDiscover last-minute flight deals from Baltimore to Idaho. Data last updated February 11, 2026 and is based on user searches.
Discover last-minute flight deals from Baltimore to Idaho. Data last updated February 11, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 2/9. 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 3/26:05 am
BWI
- BOI
1 stop9h 53m
Delta
Sat 3/73:01 pm
BOI
- BWI
1 stop6h 11m
Delta
Deal found 2/9![Delta logo]()
$297
This Delta deal was found by Cheapflights users on 2/9. 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 3/27:05 am
BWI
- BOI
1 stop7h 04m
Delta
Mon 3/911:30 pm
BOI
- BWI
1 stop9h 17m
Delta
Deal found 2/9![Delta logo]()
$337
This Delta deal was found by Cheapflights users on 2/9. 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 3/32:58 pm
BWI
- BOI
1 stop7h 57m
Delta
Sat 3/73:01 pm
BOI
- BWI
1 stop6h 11m
Delta
Deal found 2/9![Delta logo]()
$257
This Delta deal was found by Cheapflights users on 2/9. 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 3/36:00 am
BWI
- BOI
2 stops9h 58m
Delta
Mon 3/911:30 pm
BOI
- BWI
1 stop9h 17m
Delta
Deal found 2/9![Delta logo]()
$302
This Southwest deal was found by Cheapflights users on 2/9. 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 3/32:20 pm
BWI
- BOI
2 stops10h 10m
Southwest
Mon 3/96:55 pm
BOI
- BWI
1 stop8h 50m
Southwest
Deal found 2/9![Southwest logo]()
$327
This American Airlines deal was found by Cheapflights users on 2/10. 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.
Mon 3/93:21 pm
BWI
- GEG
1 stop8h 51m
American Airlines
Wed 3/116:00 am
GEG
- BWI
1 stop9h 13m
American Airlines
Deal found 2/10![American Airlines logo]()
$307
This eDestinos deal was found by Cheapflights users on 2/8. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/103:19 pm
BWI
- BOI
2 stops46h 01m
Frontier
Sun 5/1011:53 am
BOI
- BWI
2 stops51h 06m
Frontier
Deal found 2/8![Frontier logo]()
$277
This Southwest deal was found by Cheapflights users on 2/9. 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.
Wed 3/115:15 pm
BWI
- BOI
1 stop7h 05m
Southwest
Wed 3/185:55 pm
BOI
- BWI
1 stop9h 50m
Southwest
Deal found 2/9![Southwest logo]()
$323
This United Airlines deal was found by Cheapflights users on 2/9. 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 3/114:03 pm
BWI
- BOI
1 stop8h 40m
United Airlines
Wed 3/186:24 am
BOI
- BWI
2 stops12h 29m
United Airlines
Deal found 2/9![United Airlines logo]()
$331
This Delta deal was found by Cheapflights users on 2/10. 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 3/126:17 am
BWI
- GEG
1 stop9h 53m
Delta
Tue 3/175:00 pm
GEG
- BWI
1 stop9h 51m
Delta
Deal found 2/10![Delta logo]()
$317
This American Airlines deal was found by Cheapflights users on 2/10. 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.
Thu 3/123:21 pm
BWI
- GEG
1 stop8h 51m
American Airlines
Tue 3/1712:25 pm
GEG
- BWI
1 stop8h 08m
American Airlines
Deal found 2/10![American Airlines logo]()
$323
This Delta deal was found by Cheapflights users on 2/8. 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 3/146:09 am
BWI
- GEG
1 stop10h 01m
Delta
Wed 3/185:00 pm
GEG
- BWI
1 stop9h 51m
Delta
Deal found 2/8![Delta logo]()
$257
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 February 11, 2026.
Search for one-way flight options from Baltimore to Idaho. Find affordable one-way fares based on user searches. Data last updated February 11, 2026.
This United Airlines deal was found by Cheapflights users on 2/9. 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 3/38:00 am
BWI
- GEG
1 stop10h 16m
United Airlines
Deal found 2/9![United Airlines logo]()
$129
This United Airlines deal was found by Cheapflights users on 2/9. 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 4/74:18 pm
BWI
- BOI
1 stop7h 04m
United Airlines
Deal found 2/9![United Airlines logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 2/7. 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.
Sat 3/74:53 pm
BWI
- BOI
2 stops19h 27m
Frontier
Deal found 2/7![Frontier logo]()
$149
This American Airlines deal was found by Cheapflights users on 2/10. 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.
Thu 3/56:00 am
BWI
- BOI
1 stop8h 48m
American Airlines
Deal found 2/10![American Airlines logo]()
$169
This Delta deal was found by Cheapflights users on 2/9. 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 4/77:01 am
BWI
- SUN
1 stop6h 53m
Delta
Deal found 2/9![Delta logo]()
$171
This Expedia deal was found by Cheapflights users on 2/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/116:46 pm
BWI
- JAC
1 stop18h 22m
Alaska Airlines
Deal found 2/8![Alaska Airlines logo]()
$177
This Expedia deal was found by Cheapflights users on 2/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/207:04 pm
BWI
- JAC
1 stop18h 33m
Alaska Airlines
Deal found 2/9![Alaska Airlines logo]()
$185
This Southwest deal was found by Cheapflights users on 2/9. 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.
Mon 4/65:55 pm
BWI
- BOI
1 stop9h 25m
Southwest
Deal found 2/9![Southwest logo]()
$193
This American Airlines deal was found by Cheapflights users on 2/9. 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.
Thu 4/25:00 am
BWI
- GEG
1 stop9h 44m
American Airlines
Deal found 2/9![American Airlines logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 4/78:39 pm
BWI
- BOI
3 stops40h 29m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$195
This Delta deal was found by Cheapflights users on 2/9. 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 4/67:01 am
BWI
- SUN
1 stop9h 48m
Delta
Deal found 2/9![Delta logo]()
$200
This American Airlines deal was found by Cheapflights users on 2/9. 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.
Sun 4/55:00 am
BWI
- BOI
1 stop10h 00m
American Airlines
Deal found 2/9![American Airlines logo]()
$201
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 February 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $257 (Delta) |
One-way from | $129 (United Airlines) |
Popular in | December |
Cheapest in | April |
Average price | $383 |
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 February 11, 2026.
Use the filters below to find and compare flights from Baltimore to Idaho that are best for you.
Fly from
Baltimore
Fly to
Idaho
Route
Depart
Return
Price
BaltimoreBoise
BWI - BOI
BWIBOI
Baltimore/Washington
Wed 3/4
6:00 am-12:28 pm
1 stop8h 28m
Boise Air Term. Gowen Fld
Sat 3/7
3:01 pm-11:12 pm
1 stop6h 11m
$257
BaltimoreBoise
BWI - BOI
BWIBOI
Baltimore/Washington
Tue 5/12
7:00 am-1:19 pm
1 stop8h 19m
Boise Air Term. Gowen Fld
Sat 5/16
2:25 pm-12:28 am
1 stop8h 03m
$257
BaltimoreBoise
BWI - BOI
BWIBOI
Baltimore/Washington
Tue 3/3
2:58 pm-8:55 pm
1 stop7h 57m
Boise Air Term. Gowen Fld
Sat 3/7
3:01 pm-11:12 pm
1 stop6h 11m
$257
BaltimoreBoise
BWI - BOI
BWIBOI
Baltimore/Washington
Wed 4/29
7:15 am-12:02 pm
1 stop6h 47m
Boise Air Term. Gowen Fld
Sat 5/2
12:52 pm-11:25 pm
1 stop8h 33m
$267
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Tue 4/21
4:18 pm-9:11 pm
1 stop7h 53m
Spokane
Tue 4/28
1:43 pm-11:24 pm
1 stop6h 41m
$277
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Tue 4/21
6:03 am-1:03 pm
2 stops10h 00m
Spokane
Tue 4/28
10:40 pm-11:41 am
2 stops10h 01m
$278
BaltimoreBoise
BWI - BOI
BWIBOI
Baltimore/Washington
Mon 3/2
6:05 am-1:58 pm
1 stop9h 53m
Boise Air Term. Gowen Fld
Sat 3/7
3:01 pm-11:12 pm
1 stop6h 11m
$297
BaltimoreBoise
BWI - BOI
BWIBOI
Baltimore/Washington
Tue 3/3
6:00 am-1:58 pm
2 stops9h 58m
Boise Air Term. Gowen Fld
Mon 3/9
11:30 pm-10:47 am
1 stop9h 17m
$302
BaltimoreBoise
BWI - BOI
BWIBOI
Baltimore/Washington
Tue 4/7
4:18 pm-9:22 pm
1 stop7h 04m
Boise Air Term. Gowen Fld
Sat 4/11
7:11 am-5:08 pm
1 stop7h 57m
$312
BaltimoreSpokane
BWI - GEG
BWIGEG
Baltimore/Washington
Thu 3/12
6:17 am-1:10 pm
1 stop9h 53m
Spokane
Tue 3/17
5:00 pm-5:51 am
1 stop9h 51m
$317
Showing 1-10 of 60 results
Best time to book a flight from Baltimore to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from Baltimore with our price prediction graph.
BWI-GEG
BWI-BOI
BWI-SUN
BWI-JAC
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-GEG
BWI-BOI
BWI-SUN
BWI-JAC
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 February is currently the most expensive (average of $310). 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 February 11, 2026.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Baltimore to Idaho by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.0
Food
7.1
Overall
8.0
Crew
8.5
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Food
7.1
Overall
8.0
Crew
8.5
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Food
7.1
Overall
8.0
Crew
8.5
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Food
7.1
Overall
8.0
Crew
8.5
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Food
7.1
Overall
8.0
Crew
8.5
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
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 February 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 February 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$208 | Average$445 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$275 | Average$605 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$321 | Average$372 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$342 | Average$486 | FlexibilityNo cancel fee | On-time63% |