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$129+ Cheap flights from Idaho to Baltimore (BWI)

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.
BOI — BWI
Feb 27 — Mar 61
Fri 2/27
Fri 3/6
1 adult, Economy
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Cheap flight deals from Idaho to Baltimore

Cheapest flights from Idaho to Baltimore
Explore the most affordable flight options available from Idaho to Baltimore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.

This Delta deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” 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 4/111:30 pm
BOI
-
BWI
1 stop8h 09m
Delta
Tue 4/76:00 am
BWI
-
BOI
1 stop8h 38m
Delta
Deal found 1/26$257
This Alaska Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/258:29 pm
GEG
-
BWI
1 stop18h 17m
Alaska Airlines
Wed 3/46:46 pm
BWI
-
GEG
1 stop8h 13m
Alaska Airlines
Deal found 1/28$257
This United Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/252:40 pm
BOI
-
BWI
1 stop6h 45m
United Airlines
Wed 3/410:30 am
BWI
-
BOI
2 stops12h 25m
United Airlines
Deal found 1/27$262
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/255:00 am
GEG
-
BWI
2 stops13h 17m
United Airlines
Wed 3/44:09 pm
BWI
-
GEG
1 stop8h 08m
United Airlines
Deal found 1/28$262
This American Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/51:27 pm
SUN
-
BWI
1 stop6h 26m
American Airlines
Sun 3/85:00 am
BWI
-
SUN
1 stop9h 59m
American Airlines
Deal found 1/27$297
This Expedia deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” 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.
Thu 2/266:28 am
BOI
-
BWI
1 stop9h 18m
Alaska Airlines
Tue 3/36:46 pm
BWI
-
BOI
1 stop16h 54m
Alaska Airlines
Deal found 1/26$297
This Delta deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” 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 2/2612:48 pm
GEG
-
BWI
1 stop8h 47m
Delta
Wed 3/46:00 am
BWI
-
GEG
1 stop8h 35m
Delta
Deal found 1/26$297
This Delta deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/2512:59 pm
BOI
-
BWI
1 stop8h 45m
Delta
Wed 3/46:05 am
BWI
-
BOI
1 stop9h 54m
Delta
Deal found 1/27$307
This Delta deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” 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 3/24:55 pm
GEG
-
BWI
2 stops13h 27m
Delta
Wed 3/411:45 am
BWI
-
GEG
2 stops15h 19m
Delta
Deal found 1/26$308
This Alaska Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” 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 10/276:15 am
IDA
-
BWI
1 stop9h 51m
Alaska Airlines
Sat 10/317:51 am
BWI
-
IDA
1 stop9h 38m
Alaska Airlines
Deal found 1/26$309
This American Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” 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 3/51:08 pm
JAC
-
BWI
1 stop7h 51m
American Airlines
Sun 3/85:00 am
BWI
-
JAC
1 stop9h 18m
American Airlines
Deal found 1/26$314
This United Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” 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 10/275:00 am
IDA
-
BWI
2 stops10h 13m
United Airlines
Sat 10/3110:00 am
BWI
-
IDA
1 stop9h 22m
United Airlines
Deal found 1/26$314

Find flight deals from Idaho to Baltimore

Keep the following information in mind while searching for Idaho to Baltimore flight deals. Data was last updated January 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$257
(Delta)

One-way from

$129
(American Airlines)

Popular in

January

Cheapest in

August

Average price

$1,006
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Washington, D.C. (WAS) flights.
Search Deals
From Idaho to Baltimore/Washington
Search Deals
One-way flight from Idaho to Baltimore/Washington
Search Deals
Highest demand for flights based on searches. 28% potential increase in price ($181 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease ($51 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to Baltimore 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 January 28, 2026.
Use the filters below to find and compare flights from Idaho to Baltimore that are best for you.

Fly from

Idaho

Fly to

Baltimore

Route

Depart

Return

Price

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Wed 2/25

8:29 pm-5:46 pm

1 stop18h 17m

Baltimore/Washington

Wed 3/4

6:46 pm-11:59 pm

1 stop8h 13m

$257

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Wed 2/25

2:40 pm-11:25 pm

1 stop6h 45m

Baltimore/Washington

Wed 3/4

10:30 am-8:55 pm

2 stops12h 25m

$262

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Wed 2/25

5:00 am-9:17 pm

2 stops13h 17m

Baltimore/Washington

Wed 3/4

4:09 pm-9:17 pm

1 stop8h 08m

$262

HaileyBaltimore

SUN - BWI

SUNBWI

Hailey Sun Valley-Friedman

Thu 3/5

1:27 pm-9:53 pm

1 stop6h 26m

Baltimore/Washington

Sun 3/8

5:00 am-12:59 pm

1 stop9h 59m

$297

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Sat 2/28

7:05 am-5:46 pm

1 stop7h 41m

Baltimore/Washington

Thu 3/5

6:46 pm-11:59 pm

1 stop8h 13m

$297

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Wed 2/25

12:59 pm-11:44 pm

1 stop8h 45m

Baltimore/Washington

Wed 3/4

6:05 am-1:59 pm

1 stop9h 54m

$307

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Mon 3/2

4:55 pm-9:22 am

2 stops13h 27m

Baltimore/Washington

Wed 3/4

11:45 am-12:04 am

2 stops15h 19m

$308

JacksonBaltimore

JAC - BWI

JACBWI

Jackson Hole

Thu 3/5

1:08 pm-10:59 pm

1 stop7h 51m

Baltimore/Washington

Sun 3/8

5:00 am-12:18 pm

1 stop9h 18m

$314

JacksonBaltimore

JAC - BWI

JACBWI

Jackson Hole

Thu 3/5

2:35 pm-12:35 am

1 stop8h 00m

Baltimore/Washington

Sun 3/8

6:15 am-4:47 pm

2 stops12h 32m

$319

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Thu 2/26

10:41 am-11:44 pm

2 stops11h 03m

Baltimore/Washington

Tue 3/3

2:58 pm-11:05 pm

2 stops10h 07m

$321

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 60 results
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Best time to book a flight from Idaho to Baltimore

Have a flexible travel schedule? Discover the best time to fly to Baltimore from Idaho with our price prediction graph.
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 Baltimore

What is the cheapest month to book a flight from Idaho to Baltimore?

Currently, April is the cheapest month in which you can book a flight from Idaho to Baltimore (average of $141). Flying from Idaho to Baltimore in December is currently the most expensive (average of $369). 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.

Related info for your journey

Find useful and relevant information for your journey from Idaho to Baltimore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Baltimore from Idaho?

    Most people fly into Baltimore/Washington (BWI) if they book a flight to Baltimore from Idaho. Baltimore/Washington is conveniently located just 8.5 mi from Baltimore’s city center.

  • How long is the flight from Idaho to Baltimore?

    For as low as $297, Alaska Airlines can have you in Baltimore from Idaho in 6h 26m. Airlines will cover a distance of 1956 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Idaho to Baltimore one-way?

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $130. However, be on the lookout for offers from Delta and Southwest, as they are both options that can get you from Idaho to Baltimore for a low price.

  • What are the most popular routes from Idaho to Baltimore?

    The most popular route from Idaho to Baltimore is Spokane - Baltimore/Washington. You may also consider Boise Air Term. Gowen Fld - Baltimore/Washington or Idaho Falls Fanning Field - Baltimore/Washington.

  • Can I find deals for flights from Idaho to Baltimore that include hotel bookings?

    Yes. In addition to deals on Idaho to Baltimore flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho to Baltimore?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho to Baltimore.

  • Can I find deals for business class flights from Idaho to Baltimore?

    Yes. Cheapflights offers flight deals from Idaho to Baltimore by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Idaho to Baltimore?

    Currently, April is the cheapest month in which you can book a flight from Idaho to Baltimore (average of $141). Flying from Idaho to Baltimore in December is currently the most expensive (average of $369). 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.

See more FAQs

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 for Idaho to Baltimore

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Idaho to Baltimore

Discover the top 3 airlines that operate flights from Idaho to Baltimore. 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 January 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$268Average$514FlexibilityNo cancel feeOn-time69%
DeltaCheapest$286Average$416FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$340Average$436FlexibilityNo cancel feeOn-time63%

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