$105+ Cheap flights from Idaho to Maryland
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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BWI
Jul 21 — Jul 281
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Idaho to Maryland 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Idaho to Maryland
Cheapest
Best
Last-minute
One-way
Cheapest flights from Idaho to MarylandExplore the most affordable flight options available from Idaho to Maryland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 21, 2026.
Explore the most affordable flight options available from Idaho to Maryland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 21, 2026.
This Expedia deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/121:24 pm
BOI
- DCA
1 stop21h 27m
Frontier
Sun 7/197:00 am
DCA
- BOI
1 stop7h 29m
Frontier
Deal found 6/20![Frontier logo]()
$242
This Booking.com deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/61:24 pm
BOI
- PHL
1 stop20h 25m
Frontier
Mon 8/178:37 pm
PHL
- BOI
1 stop17h 52m
Frontier
Deal found 6/18![Frontier logo]()
$242
This Booking.com deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/231:24 pm
BOI
- PHL
1 stop14h 15m
Frontier
Mon 7/278:37 pm
PHL
- BOI
1 stop17h 52m
Frontier
Deal found 6/19![Frontier logo]()
$253
This Booking.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/91:24 pm
BOI
- DCA
1 stop6h 35m
Frontier
Mon 7/131:59 pm
DCA
- BOI
1 stop24h 30m
Frontier
Deal found 6/17![Frontier logo]()
$254
This Booking.com deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/91:24 pm
BOI
- PHL
1 stop14h 15m
Frontier
Mon 7/1312:54 pm
PHL
- BOI
1 stop25h 35m
Frontier
Deal found 6/18![Frontier logo]()
$273
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 9/1111:43 am
GEG
- IAD
1 stop9h 57m
Delta
Mon 9/143:13 pm
IAD
- GEG
1 stop9h 05m
Delta
Deal found 6/16![Delta logo]()
$275
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:45 am
GEG
- DCA
1 stop8h 24m
Delta
Tue 9/85:48 pm
DCA
- GEG
1 stop7h 06m
Delta
Deal found 6/16![Delta logo]()
$275
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:59 pm
BOI
- PHL
1 stop9h 51m
Delta
Sun 8/237:00 pm
PHL
- BOI
1 stop6h 59m
Delta
Deal found 6/17![Delta logo]()
$279
This American Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/166:30 am
GEG
- PHL
1 stop11h 09m
American Airlines
Tue 7/214:17 pm
PHL
- GEG
1 stop9h 49m
American Airlines
Deal found 6/17![American Airlines logo]()
$279
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2011:10 pm
BOI
- PHL
1 stop8h 28m
Delta
Mon 8/246:15 am
PHL
- BOI
1 stop8h 34m
Delta
Deal found 6/17![Delta logo]()
$289
This Delta deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1911:10 am
BOI
- IAD
1 stop6h 54m
Delta
Tue 9/227:10 am
IAD
- BOI
1 stop10h 02m
Delta
Deal found 6/19![Delta logo]()
$293
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/243:21 pm
BOI
- DCA
1 stop6h 38m
American Airlines
Wed 9/305:00 am
DCA
- BOI
1 stop10h 00m
American Airlines
Deal found 6/20![American Airlines logo]()
$293
Best flights from Idaho to MarylandDiscover carefully curated flight deals from Idaho to Maryland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 21, 2026.
Discover carefully curated flight deals from Idaho to Maryland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 21, 2026.
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 10/610:50 am
GEG
- IAD
1 stop10h 01m
Delta
Tue 10/206:00 am
IAD
- GEG
1 stop8h 38m
Delta
Deal found 6/16![Delta logo]()
$275
This Southwest deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/222:25 pm
BOI
- PHL
1 stop7h 25m
Southwest
Tue 9/293:05 pm
PHL
- BOI
2 stops10h 05m
Southwest
Deal found 6/20![Southwest logo]()
$306
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 11/121:45 pm
GEG
- BWI
1 stop6h 15m
United Airlines
Wed 11/1810:00 am
BWI
- GEG
2 stops16h 38m
United Airlines
Deal found 6/16![United Airlines logo]()
$314
This Alaska Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:00 am
BOI
- PHL
1 stop7h 45m
Alaska Airlines
Wed 9/237:00 am
PHL
- BOI
1 stop10h 30m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$330
This American Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 9/33:16 pm
BOI
- DCA
1 stop6h 43m
American Airlines
Mon 9/79:07 am
DCA
- BOI
1 stop7h 13m
American Airlines
Deal found 6/16![American Airlines logo]()
$337
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1512:40 pm
GEG
- PHL
1 stop9h 11m
Delta
Mon 10/197:05 am
PHL
- GEG
1 stop8h 57m
Delta
Deal found 6/17![Delta logo]()
$279
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/175:37 pm
GEG
- PHL
1 stop8h 52m
Delta
Mon 7/207:05 am
PHL
- GEG
1 stop8h 06m
Delta
Deal found 6/17![Delta logo]()
$279
This Alaska Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:00 am
BOI
- BWI
1 stop7h 40m
Alaska Airlines
Tue 9/227:50 am
BWI
- BOI
1 stop9h 40m
Alaska Airlines
Deal found 6/21![Alaska Airlines logo]()
$333
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 9/2212:14 pm
BOI
- IAD
1 stop8h 35m
Delta
Tue 9/296:20 am
IAD
- BOI
1 stop9h 18m
Delta
Deal found 6/16![Delta logo]()
$293
This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:00 am
BOI
- IAD
1 stop6h 30m
United Airlines
Sun 9/276:35 am
IAD
- BOI
1 stop9h 03m
United Airlines
Deal found 6/18![United Airlines logo]()
$367
This Alaska Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 8/257:20 am
BOI
- IAD
1 stop8h 54m
Alaska Airlines
Wed 8/267:00 am
IAD
- BOI
1 stop10h 31m
Alaska Airlines
Deal found 6/16![Alaska Airlines logo]()
$337
This Southwest deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 7/315:10 pm
GEG
- BWI
1 stop9h 35m
Southwest
Sat 8/86:30 am
BWI
- GEG
1 stop8h 35m
Southwest
Deal found 6/16![Southwest logo]()
$373
This American Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 9/226:30 am
BOI
- IAD
2 stops10h 29m
American Airlines
Tue 9/294:56 pm
IAD
- BOI
1 stop7h 31m
American Airlines
Deal found 6/16![American Airlines logo]()
$389
This Delta deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2412:14 pm
BOI
- IAD
1 stop8h 42m
Delta
Wed 9/306:20 am
IAD
- BOI
1 stop9h 24m
Delta
Deal found 6/21![Delta logo]()
$293
This Alaska Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 11/35:00 am
GEG
- PHL
1 stop7h 25m
Alaska Airlines
Wed 11/45:49 pm
PHL
- GEG
1 stop8h 07m
Alaska Airlines
Deal found 6/16![Alaska Airlines logo]()
$339
This Southwest deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:00 am
GEG
- BWI
1 stop6h 45m
Southwest
Thu 9/105:15 pm
BWI
- GEG
2 stops8h 25m
Southwest
Deal found 6/19![Southwest logo]()
$373
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 8/255:00 am
GEG
- IAD
1 stop9h 50m
United Airlines
Wed 8/262:43 pm
IAD
- GEG
1 stop9h 03m
United Airlines
Deal found 6/16![United Airlines logo]()
$385
This American Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 9/226:30 am
BOI
- DCA
2 stops9h 33m
American Airlines
Tue 9/296:30 am
DCA
- BOI
1 stop10h 01m
American Airlines
Deal found 6/16![American Airlines logo]()
$393
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 7/3010:48 pm
GEG
- IAD
1 stop9h 49m
Delta
Tue 8/116:00 am
IAD
- GEG
1 stop8h 21m
Delta
Deal found 6/16![Delta logo]()
$306
This Southwest deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1712:10 pm
BOI
- DCA
1 stop9h 45m
Southwest
Mon 9/213:30 pm
DCA
- BOI
2 stops9h 05m
Southwest
Deal found 6/18![Southwest logo]()
$377
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 9/111:37 pm
GEG
- IAD
1 stop7h 55m
United Airlines
Mon 9/142:43 pm
IAD
- GEG
1 stop9h 31m
United Airlines
Deal found 6/16![United Airlines logo]()
$389
This Alaska Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1512:33 pm
GEG
- PHL
1 stop23h 33m
Alaska Airlines
Mon 10/196:39 pm
PHL
- GEG
1 stop8h 15m
Alaska Airlines
Deal found 6/18![Alaska Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/310:56 pm
GEG
- BWI
1 stop7h 23m
Delta
Thu 9/107:35 am
BWI
- GEG
1 stop7h 39m
Delta
Deal found 6/19![Delta logo]()
$309
This Southwest deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/111:50 pm
GEG
- BWI
1 stop6h 35m
Southwest
Mon 9/144:10 pm
BWI
- GEG
2 stops10h 05m
Southwest
Deal found 6/16![Southwest logo]()
$388
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 11/37:02 am
GEG
- PHL
1 stop11h 18m
United Airlines
Wed 11/410:10 am
PHL
- GEG
2 stops16h 28m
United Airlines
Deal found 6/16![United Airlines logo]()
$394
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/235:10 pm
GEG
- BWI
1 stop9h 50m
Delta
Mon 7/277:15 am
BWI
- GEG
1 stop7h 57m
Delta
Deal found 6/20![Delta logo]()
$309
This Alaska Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/281:46 pm
IDA
- IAD
1 stop8h 13m
Alaska Airlines
Sat 10/317:00 am
IAD
- IDA
1 stop10h 35m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$384
This Southwest deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:30 am
BOI
- PHL
2 stops11h 35m
Southwest
Thu 9/174:05 pm
PHL
- BOI
1 stop8h 30m
Southwest
Deal found 6/19![Southwest logo]()
$389
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 11/1212:40 pm
GEG
- BWI
1 stop8h 46m
Delta
Wed 11/187:30 am
BWI
- GEG
1 stop7h 14m
Delta
Deal found 6/16![Delta logo]()
$309
This Alaska Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:09 am
IDA
- PHL
1 stop9h 30m
Alaska Airlines
Sat 10/317:00 am
PHL
- IDA
1 stop10h 35m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$384
Last-minute flights from Idaho to MarylandDiscover last-minute flight deals from Idaho to Maryland. Data last updated June 21, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho to Maryland. Data last updated June 21, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 7/33:05 pm
BOI
- IAD
1 stop7h 20m
Delta
Thu 7/96:46 pm
IAD
- BOI
1 stop7h 00m
Delta
Deal found 6/16![Delta logo]()
$293
This Booking.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/91:24 pm
BOI
- DCA
1 stop6h 35m
Frontier
Mon 7/131:59 pm
DCA
- BOI
1 stop24h 30m
Frontier
Deal found 6/17![Frontier logo]()
$254
This Booking.com deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/91:24 pm
BOI
- PHL
1 stop14h 15m
Frontier
Mon 7/1312:54 pm
PHL
- BOI
1 stop25h 35m
Frontier
Deal found 6/18![Frontier logo]()
$273
This Expedia deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/121:24 pm
BOI
- DCA
1 stop21h 27m
Frontier
Sun 7/197:00 am
DCA
- BOI
1 stop7h 29m
Frontier
Deal found 6/20![Frontier logo]()
$242
This American Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/166:30 am
GEG
- PHL
1 stop11h 09m
American Airlines
Tue 7/214:17 pm
PHL
- GEG
1 stop9h 49m
American Airlines
Deal found 6/17![American Airlines logo]()
$279
This Booking.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/231:24 pm
BOI
- PHL
1 stop20h 25m
Frontier
Mon 7/2712:54 pm
PHL
- BOI
1 stop25h 35m
Frontier
Deal found 6/17![Frontier logo]()
$242
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2411:10 pm
BOI
- IAD
1 stop8h 50m
Delta
Mon 7/276:00 am
IAD
- BOI
1 stop8h 53m
Delta
Deal found 6/17![Delta logo]()
$317
This Delta deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:25 am
GEG
- DCA
1 stop6h 56m
Delta
Wed 8/54:35 pm
DCA
- GEG
1 stop10h 24m
Delta
Deal found 6/18![Delta logo]()
$312
This Delta deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/297:08 pm
GEG
- BWI
1 stop7h 52m
Delta
Mon 8/34:56 pm
BWI
- GEG
1 stop7h 34m
Delta
Deal found 6/18![Delta logo]()
$319
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 7/3010:48 pm
GEG
- IAD
1 stop9h 49m
Delta
Tue 8/116:00 am
IAD
- GEG
1 stop8h 21m
Delta
Deal found 6/16![Delta logo]()
$306
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 7/305:10 pm
GEG
- BWI
1 stop9h 50m
Delta
Tue 8/116:00 am
BWI
- GEG
1 stop8h 21m
Delta
Deal found 6/16![Delta logo]()
$309
This American Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 7/313:10 pm
BOI
- PHL
1 stop7h 49m
American Airlines
Tue 8/49:45 am
PHL
- BOI
1 stop9h 04m
American Airlines
Deal found 6/16![American Airlines logo]()
$279
One-way flights from Idaho to MarylandSearch for one-way flight options from Idaho to Maryland. Find affordable one-way fares based on user searches. Data last updated June 21, 2026.
Search for one-way flight options from Idaho to Maryland. Find affordable one-way fares based on user searches. Data last updated June 21, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/285:08 pm
IDA
- IAD
1 stop12h 56m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$105
This Frontier deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/141:24 pm
BOI
- DCA
1 stop6h 35m
Frontier
Deal found 6/20![Frontier logo]()
$121
This Expedia deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/71:24 pm
BOI
- DCA
1 stop21h 27m
Frontier
Deal found 6/17![Frontier logo]()
$136
This Booking.com deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/281:25 pm
BOI
- PHL
1 stop20h 22m
Frontier
Deal found 6/19![Frontier logo]()
$136
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/275:30 am
GEG
- DCA
1 stop6h 56m
Delta
Deal found 6/17![Delta logo]()
$138
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 9/47:28 pm
BOI
- PHL
1 stop8h 22m
Delta
Deal found 6/16![Delta logo]()
$140
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/195:40 pm
GEG
- PHL
1 stop9h 10m
Delta
Deal found 6/17![Delta logo]()
$140
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/302:50 pm
BOI
- PHL
1 stop6h 56m
Delta
Deal found 6/17![Delta logo]()
$145
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 7/142:03 pm
BOI
- IAD
1 stop8h 38m
Delta
Deal found 6/16![Delta logo]()
$147
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/192:11 pm
BOI
- DCA
1 stop7h 32m
Delta
Deal found 6/20![Delta logo]()
$147
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/142:50 pm
BOI
- BWI
1 stop6h 23m
Delta
Deal found 6/17![Delta logo]()
$147
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2810:48 pm
GEG
- IAD
1 stop9h 49m
Delta
Deal found 6/17![Delta logo]()
$148
Find flight deals from Idaho to Maryland
Keep the following information in mind while searching for Idaho to Maryland flight deals. Data was last updated June 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $242 (Expedia) |
One-way from | $105 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $568 |
Cheapflights Fare Finder
Customize your flight search to find flights from Idaho to Maryland 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 June 21, 2026.
Use the filters below to find and compare flights from Idaho to Maryland that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SpokaneWashington, D.C.
GEG - IAD
GEGIAD
Spokane
Tue 10/6
10:50 am-11:51 pm
1 stop10h 01m
Washington, D.C. Dulles Intl
Tue 10/20
6:00 am-11:38 am
1 stop8h 38m
$275
SpokanePhiladelphia
GEG - PHL
GEGPHL
Spokane
Thu 10/15
12:40 pm-12:51 am
1 stop9h 11m
Philadelphia
Mon 10/19
7:05 am-1:02 pm
1 stop8h 57m
$279
SpokanePhiladelphia
GEG - PHL
GEGPHL
Spokane
Fri 7/17
5:37 pm-5:29 am
1 stop8h 52m
Philadelphia
Mon 7/20
7:05 am-12:11 pm
1 stop8h 06m
$279
BoiseWashington, D.C.
BOI - IAD
BOIIAD
Boise Air Term. Gowen Fld
Tue 9/22
12:14 pm-10:49 pm
1 stop8h 35m
Washington, D.C. Dulles Intl
Tue 9/29
6:20 am-1:38 pm
1 stop9h 18m
$293
BoiseWashington, D.C.
BOI - IAD
BOIIAD
Boise Air Term. Gowen Fld
Thu 9/24
12:14 pm-10:56 pm
1 stop8h 42m
Washington, D.C. Dulles Intl
Wed 9/30
6:20 am-1:44 pm
1 stop9h 24m
$293
BoisePhiladelphia
BOI - PHL
BOIPHL
Boise Air Term. Gowen Fld
Tue 9/22
2:25 pm-11:50 pm
1 stop7h 25m
Philadelphia
Tue 9/29
3:05 pm-11:10 pm
2 stops10h 05m
$306
SpokaneWashington, D.C.
GEG - IAD
GEGIAD
Spokane
Thu 7/30
10:48 pm-11:37 am
1 stop9h 49m
Washington, D.C. Dulles Intl
Tue 8/11
6:00 am-11:21 am
1 stop8h 21m
$306
SpokaneBaltimore
GEG - BWI
GEGBWI
Spokane
Thu 9/3
10:56 pm-9:19 am
1 stop7h 23m
Baltimore/Washington
Thu 9/10
7:35 am-12:14 pm
1 stop7h 39m
$309
SpokaneBaltimore
GEG - BWI
GEGBWI
Spokane
Thu 7/23
5:10 pm-6:00 am
1 stop9h 50m
Baltimore/Washington
Mon 7/27
7:15 am-12:12 pm
1 stop7h 57m
$309
SpokaneBaltimore
GEG - BWI
GEGBWI
Spokane
Thu 11/12
12:40 pm-12:26 am
1 stop8h 46m
Baltimore/Washington
Wed 11/18
7:30 am-11:44 am
1 stop7h 14m
$309
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Idaho to Maryland
Have a flexible travel schedule? Discover the best time to fly to Maryland from Idaho with our price prediction graph.
GEG-IAD
BOI-PHL
GEG-BWI
BOI-DCA
GEG-PHL
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 Idaho to Maryland
USID-USMD
GEG-IAD
BOI-PHL
GEG-BWI
BOI-DCA
What is the cheapest month to book a flight from Idaho to Maryland?
Currently, March is the cheapest month in which you can book a flight from Idaho to Maryland (average of $168). Flying from Idaho to Maryland in February is currently the most expensive (average of $397). 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 Idaho to Maryland?
Reviews of airlines servicing Maryland
Get insights into the airlines that provide service to Maryland. 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 Maryland. Reviews last updated June 21, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Idaho to Maryland. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Food
7.0
Overall
7.9
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Food
7.0
Overall
7.9
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Food
7.0
Overall
7.9
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Food
7.0
Overall
7.9
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Related info for your journey
Find useful and relevant information for your journey from Idaho to Maryland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Return Flight Options
Top destinations
Alternative routes for Idaho to Maryland
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Maryland by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Idaho to Maryland by cabin class
Find flights from Idaho to Maryland, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Idaho and Maryland flights
Browse other Idaho and Maryland flight options. Last updated on June 21, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Maryland
Find the right flight back to Idaho after your stay in Maryland
Idaho to Maryland flights
Consider these flights traveling from Idaho to Maryland.
Top 3 airlines flying from Idaho to Maryland
Discover the top 3 airlines that operate flights from Idaho to Maryland. 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 June 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$196 | Average$359 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$283 | Average$535 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$340 | Average$436 | FlexibilityNo cancel fee | On-time63% |