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$119+ 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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BWI
Jan 15 — Jan 221
Thu 1/15
Thu 1/22
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 December 16, 2025.

This United Airlines deal was found by Cheapflights users on 12/14. 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 12/252:40 pmBOI - BWI
1 stop6h 36mUnited Airlines
Thu 1/18:15 amBWI - BOI
1 stop7h 21mUnited Airlines
Deal found 12/14$301
This Delta deal was found by Cheapflights users on 12/14. 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 12/256:19 pmBOI - BWI
1 stop9h 26mDelta
Thu 1/16:00 amBWI - BOI
1 stop8h 45mDelta
Deal found 12/14$409
This Southwest deal was found by Cheapflights users on 12/14. 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 12/255:15 amBOI - BWI
2 stops9h 45mSouthwest
Thu 1/12:45 pmBWI - BOI
2 stops10h 25mSouthwest
Deal found 12/14$479
This United Airlines deal was found by Cheapflights users on 12/15. 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 12/316:55 pmBOI - BWI
1 stop8h 19mUnited Airlines
Sun 1/46:15 amBWI - BOI
1 stop8h 24mUnited Airlines
Deal found 12/15$509
This United Airlines deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/295:00 amIDA - BWI
2 stops9h 58mUnited Airlines
Fri 1/210:44 amBWI - IDA
2 stops14h 15mUnited Airlines
Deal found 12/14$536
This Delta deal was found by Cheapflights users on 12/15. 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 12/2311:47 pmBOI - BWI
1 stop8h 30mDelta
Tue 1/206:05 amBWI - BOI
1 stop9h 29mDelta
Deal found 12/15$584
This United Airlines deal was found by Cheapflights users on 12/14. 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.
Sun 12/286:55 pmBOI - BWI
1 stop8h 19mUnited Airlines
Wed 12/319:55 amBWI - BOI
1 stop10h 08mUnited Airlines
Deal found 12/14$620
This Southwest deal was found by Cheapflights users on 12/14. 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.
Sun 12/286:15 amBOI - BWI
2 stops9h 30mSouthwest
Wed 12/315:50 pmBWI - BOI
1 stop7h 20mSouthwest
Deal found 12/14$652
This United Airlines deal was found by Cheapflights users on 12/15. 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 12/182:30 pmIDA - BWI
1 stop6h 46mUnited Airlines
Mon 12/229:55 amBWI - IDA
1 stop7h 27mUnited Airlines
Deal found 12/15$656
This United Airlines deal was found by Cheapflights users on 12/15. 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 12/305:05 amGEG - BWI
2 stops13h 21mUnited Airlines
Sat 1/34:05 pmBWI - GEG
1 stop7h 53mUnited Airlines
Deal found 12/15$684
This Delta deal was found by Cheapflights users on 12/15. 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 12/307:00 pmGEG - BWI
1 stop7h 45mDelta
Sat 1/37:00 amBWI - GEG
1 stop8h 06mDelta
Deal found 12/15$688
This Delta deal was found by Cheapflights users on 12/15. 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 12/181:17 pmIDA - BWI
2 stops9h 04mDelta
Mon 12/227:00 amBWI - IDA
1 stop7h 27mDelta
Deal found 12/15$691

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 December 16, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$276
(Delta)

One-way from

$119
(Kiwi.com)

Popular in

January

Cheapest in

August

Average price

$584
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. 26% potential increase in price ($169 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($47 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 December 16, 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

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Tue 1/13

9:15 am-11:26 pm

2 stops12h 11m

Baltimore/Washington

Tue 1/20

6:05 am-6:28 pm

2 stops14h 23m

$276

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Fri 2/6

9:20 am-11:26 pm

2 stops11h 06m

Baltimore/Washington

Sun 2/8

1:02 pm-8:58 pm

2 stops10h 56m

$276

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Fri 2/6

7:20 am-11:26 pm

2 stops13h 06m

Baltimore/Washington

Mon 2/9

5:25 pm-11:59 pm

2 stops9h 34m

$276

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Wed 2/18

7:20 pm-10:32 am

2 stops12h 12m

Baltimore/Washington

Fri 2/27

2:58 pm-12:04 am

2 stops12h 06m

$276

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Wed 2/18

7:20 pm-9:23 am

2 stops11h 03m

Baltimore/Washington

Wed 2/25

5:25 pm-12:04 am

2 stops9h 39m

$276

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Tue 3/17

9:28 am-11:01 pm

2 stops10h 33m

Baltimore/Washington

Tue 3/24

6:10 am-1:00 pm

2 stops9h 50m

$276

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Wed 2/18

7:20 pm-9:23 am

2 stops11h 03m

Baltimore/Washington

Thu 2/26

2:58 pm-12:04 am

2 stops12h 06m

$276

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Tue 1/13

6:23 am-6:14 pm

1 stop9h 51m

Baltimore/Washington

Tue 1/20

7:14 pm-10:52 am

1 stop17h 38m

$283

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Wed 1/14

9:20 am-11:05 pm

2 stops10h 45m

Baltimore/Washington

Wed 1/21

3:00 pm-10:52 pm

2 stops10h 52m

$297

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Wed 1/14

7:30 am-6:14 pm

1 stop7h 44m

Baltimore/Washington

Wed 1/21

7:14 pm-12:23 am

1 stop8h 09m

$316

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

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 $367). 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 December 16, 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 35m. Airlines will cover a distance of 1845 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 Delta, with whom users have recently found tickets for as low as $143. However, be on the lookout for offers from Southwest and United 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 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 $367). 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

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 December 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$286Average$427FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$305Average$517FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$351Average$446FlexibilityNo cancel feeOn-time63%

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