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$100+ 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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BWI
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Find 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 October 29, 2025.

This Delta deal was found by Cheapflights users on 10/26. 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.
Fri 12/53:35 pmGEG - BWI
2 stops11h 25mDelta
Thu 12/117:15 amBWI - GEG
2 stops10h 40mDelta
Deal found 10/26$256
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/271:16 pmGEG - BWI
1 stop8h 10mDelta
Thu 12/41:52 pmBWI - GEG
2 stops13h 19mDelta
Deal found 10/28$292
This Alaska Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” 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 11/275:30 amGEG - BWI
1 stop9h 38mAlaska Airlines
Thu 12/47:16 pmBWI - GEG
1 stop8h 08mAlaska Airlines
Deal found 10/29$312
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/121:54 pmBOI - BWI
2 stops14h 06mDelta
Mon 12/157:15 amBWI - BOI
2 stops10h 47mDelta
Deal found 10/28$314
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/45:59 pmBOI - BWI
1 stop9h 41mHawaiian Airlines
Wed 12/107:00 amBWI - BOI
1 stop10h 26mHawaiian Airlines
Deal found 10/28$317
This Southwest deal was found by Cheapflights users on 10/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1811:45 amBOI - BWI
1 stop8h 25mSouthwest
Thu 11/207:00 amBWI - BOI
1 stop10h 05mSouthwest
Deal found 10/28$322
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” 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.
Thu 11/204:57 pmGEG - BWI
2 stops15h 31mMultiple Airlines
Mon 11/245:45 amBWI - GEG
1 stop32h 10mMultiple Airlines
Deal found 10/29$323
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/181:49 pmBOI - BWI
1 stop8h 37mDelta
Thu 11/206:00 amBWI - BOI
2 stops12h 05mDelta
Deal found 10/28$327
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/43:13 pmBOI - BWI
1 stop7h 08mDelta
Wed 12/104:49 pmBWI - BOI
2 stops9h 53mDelta
Deal found 10/28$334
This Alaska Airlines deal was found by Cheapflights users on 10/26. 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.
Fri 12/51:33 pmGEG - BWI
1 stop25h 43mAlaska Airlines
Thu 12/117:16 pmBWI - GEG
1 stop8h 08mAlaska Airlines
Deal found 10/26$340
This Delta deal was found by Cheapflights users on 10/27. 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 12/107:00 amLWS - BWI
2 stops14h 21mDelta
Sat 12/136:00 amBWI - LWS
2 stops18h 02mDelta
Deal found 10/27$365
This Southwest deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” 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 11/2012:40 pmGEG - BWI
1 stop6h 30mSouthwest
Mon 11/246:35 pmBWI - GEG
1 stop8h 50mSouthwest
Deal found 10/29$373

Cheap flight deals from Idaho to Baltimore

Keep the following information in mind while searching for Idaho to Baltimore flight deals. Data was last updated October 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$256
(Delta)

One-way from

$100
(Kiwi.com)

Popular in

March

Cheapest in

August

Average price

$373
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. 2% potential increase in price ($11 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 October 29, 2025.
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

Fri 12/5

3:35 pm-6:00 am

2 stops11h 25m

Baltimore/Washington

Thu 12/11

7:15 am-2:55 pm

2 stops10h 40m

$256

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Thu 11/27

1:16 pm-12:26 am

1 stop8h 10m

Baltimore/Washington

Thu 12/4

1:52 pm-12:11 am

2 stops13h 19m

$292

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Wed 2/18

11:15 am-11:42 pm

2 stops9h 27m

Baltimore/Washington

Wed 2/25

6:00 am-1:00 pm

2 stops10h 00m

$294

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Wed 2/4

11:22 am-11:42 pm

2 stops9h 20m

Baltimore/Washington

Sat 2/7

1:02 pm-9:03 pm

2 stops11h 01m

$294

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Wed 2/18

7:30 am-5:55 pm

1 stop7h 25m

Baltimore/Washington

Wed 2/25

6:55 pm-12:14 am

1 stop8h 19m

$302

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Wed 2/4

11:22 am-11:42 pm

2 stops9h 20m

Baltimore/Washington

Sun 2/8

6:00 am-12:37 pm

2 stops9h 37m

$304

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Wed 2/18

5:00 am-9:27 pm

2 stops13h 27m

Baltimore/Washington

Wed 2/25

5:14 pm-9:52 pm

1 stop7h 38m

$308

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Thu 11/27

5:30 am-6:08 pm

1 stop9h 38m

Baltimore/Washington

Thu 12/4

7:16 pm-12:24 am

1 stop8h 08m

$312

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Fri 12/12

9:00 am-12:21 am

2 stops13h 21m

Baltimore/Washington

Mon 12/15

11:39 am-10:16 pm

2 stops12h 37m

$314

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Tue 11/18

1:49 pm-12:26 am

1 stop8h 37m

Baltimore/Washington

Thu 11/20

6:00 am-12:39 pm

1 stop8h 39m

$322

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

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 $376). 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.

What is the cheapest time of day to fly from ID to BWI?

Find hourly flight availability from Idaho to Baltimore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 29, 2025.

A simple way to save on the total cost of your ticket is to fly from Idaho to Baltimore in the evening. If you’re flexible enough to do this you can expect to save up to 28% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Idaho to Baltimore?

Use this chart to determine the cheapest time to fly round-trip from Idaho to Baltimore. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Idaho to Baltimore flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 $349, Delta can have you in Baltimore from Idaho in 6h 19m. Airlines will cover a distance of 1778 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 Alaska Airlines, with whom users have recently found tickets for as low as $144. However, be on the lookout for offers from United Airlines and American Airlines, 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 Boise Air Term. Gowen Fld - Baltimore/Washington. You may also consider Spokane - Baltimore/Washington or Jackson Hole - 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 $376). 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

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Alternative routes for Idaho to Baltimore

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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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$286Average$419FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$305Average$518FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$351Average$455FlexibilityNo cancel feeOn-time63%

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