HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Baltimore

$94+ 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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BWI
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Idaho to Baltimore 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 Baltimore

Keep the following information in mind while searching for Idaho to Baltimore flight deals. Data was last updated April 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$212
(Alaska Airlines)

One-way from

$94
(Mytrip)

Popular in

March

Cheapest in

February

Average price

$374
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
High demand for flights, 7% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 April 30, 2025.

This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 9/35:45 pmBOI - BWI
1 stop9h 48mAlaska Airlines
Wed 9/107:00 amBWI - BOI
1 stop10h 00mAlaska Airlines
Deal found 4/28$212
This Flightnetwork deal was found by Cheapflights users on 4/29. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/111:48 amGEG - BWI
1 stop25h 37mFrontier
Sat 6/75:20 pmBWI - GEG
1 stop20h 43mFrontier
Deal found 4/29$228
This Booking.com deal was found by Cheapflights users on 4/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2312:16 pmBOI - BWI
1 stop15h 54mMultiple Airlines
Wed 5/285:23 pmBWI - BOI
1 stop20h 28mMultiple Airlines
Deal found 4/28$246
This Mytrip deal was found by Cheapflights users on 4/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/236:03 pmGEG - BWI
1 stop22h 36mMultiple Airlines
Mon 5/266:20 amBWI - GEG
2 stops13h 53mMultiple Airlines
Deal found 4/29$277
This Delta deal was found by Cheapflights users on 4/28. 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 7/111:40 pmBOI - BWI
1 stop9h 12mDelta
Tue 7/87:18 pmBWI - BOI
1 stop6h 41mDelta
Deal found 4/28$287
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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.
Tue 9/25:46 pmGEG - BWI
1 stop8h 47mAlaska Airlines
Sat 9/67:22 pmBWI - GEG
1 stop7h 37mAlaska Airlines
Deal found 4/29$296
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/214:56 pmGEG - BWI
1 stop9h 44mDelta
Sun 5/256:15 amBWI - GEG
1 stop9h 31mDelta
Deal found 4/29$297
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/146:00 amGEG - BWI
1 stop8h 30mUnited Airlines
Sun 5/186:35 amBWI - GEG
1 stop11h 06mUnited Airlines
Deal found 4/29$316
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/274:40 pmBOI - BWI
2 stops10h 40mUnited Airlines
Tue 6/34:22 pmBWI - BOI
1 stop8h 35mUnited Airlines
Deal found 4/29$320
This Southwest deal was found by Cheapflights users on 4/28. 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.
Mon 8/257:30 amGEG - BWI
1 stop10h 55mSouthwest
Sun 8/317:30 amBWI - GEG
1 stop8h 15mSouthwest
Deal found 4/28$320
This Booking.com deal was found by Cheapflights users on 4/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/34:53 pmGEG - BWI
1 stop15h 48mSun Country Air
Sun 7/612:25 pmBWI - GEG
1 stop7h 04mSun Country Air
Deal found 4/28$325
This Southwest deal was found by Cheapflights users on 4/28. 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 8/126:05 pmBOI - BWI
2 stops8h 55mSouthwest
Mon 8/186:10 amBWI - BOI
2 stops13h 35mSouthwest
Deal found 4/28$341

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 April 30, 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

Wed 9/3

5:45 pm-5:33 am

1 stop9h 48m

Baltimore/Washington

Wed 9/10

7:00 am-3:00 pm

1 stop10h 00m

$212

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Sun 6/1

11:48 am-4:25 pm

1 stop25h 37m

Baltimore/Washington

Sat 6/7

5:20 pm-11:03 am

1 stop20h 43m

$228

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Fri 5/23

12:16 pm-6:10 am

1 stop15h 54m

Baltimore/Washington

Wed 5/28

5:23 pm-11:51 am

1 stop20h 28m

$246

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Fri 5/23

6:03 pm-7:39 pm

1 stop22h 36m

Baltimore/Washington

Mon 5/26

6:20 am-5:13 pm

2 stops13h 53m

$277

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Tue 7/1

11:40 pm-10:52 am

1 stop9h 12m

Baltimore/Washington

Tue 7/8

7:18 pm-11:59 pm

1 stop6h 41m

$287

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Wed 5/21

4:56 pm-5:40 am

1 stop9h 44m

Baltimore/Washington

Sun 5/25

6:15 am-12:46 pm

1 stop9h 31m

$297

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Wed 5/14

6:00 am-5:30 pm

1 stop8h 30m

Baltimore/Washington

Sun 5/18

6:35 am-2:41 pm

1 stop11h 06m

$316

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Tue 5/27

5:49 pm-6:29 am

1 stop9h 40m

Baltimore/Washington

Fri 5/30

7:05 pm-11:54 pm

1 stop7h 49m

$319

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Tue 5/27

4:40 pm-5:20 am

2 stops10h 40m

Baltimore/Washington

Tue 6/3

4:22 pm-10:57 pm

1 stop8h 35m

$320

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Thu 7/3

4:53 pm-11:41 am

1 stop15h 48m

Baltimore/Washington

Sun 7/6

12:25 pm-4:29 pm

1 stop7h 04m

$325

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 48 results
1
2
3
...
5

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, August is the cheapest month in which you can book a flight from Idaho to Baltimore (average of $241). Flying from Idaho to Baltimore in March is currently the most expensive (average of $290). 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 April 30, 2025.

When flying from Idaho to Baltimore, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Baltimore by month

Plan your trip to Baltimore by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Baltimore ranges from 2.9 - 4.1 inches per month. July is typically the wettest month, when rainfall can reach 4.1 in. February is typically the driest time to visit Baltimore when rainfall is around 2.9 in.

Temperature in Baltimore by month

Plan your trip to Baltimore by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Baltimore, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Baltimore

Get insights into the airlines that provide service to Baltimore. 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 Baltimore. Reviews last updated April 30, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Idaho to Baltimore. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,961 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,961 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,295 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,936 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • 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 $135. However, be on the lookout for offers from Frontier and Delta, 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, August is the cheapest month in which you can book a flight from Idaho to Baltimore (average of $241). Flying from Idaho to Baltimore in March is currently the most expensive (average of $290). 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.
Los Angeles to Reagan-National flights
Dallas/Fort Worth to Dulles Intl flights
Los Angeles to Baltimore flights
Los Angeles to Dulles Intl flights
Dallas/Fort Worth to Baltimore flights
Seattle to Dulles Intl flights
Boston to Reagan-National flights
Dallas/Fort Worth to Reagan-National flights
Seattle to Reagan-National flights
Boston to Baltimore flights
Boston to Dulles Intl flights
San Francisco to Dulles Intl flights
San Francisco to Reagan-National flights
O'Hare Intl to Philadelphia flights
Dallas/Fort Worth to Philadelphia flights
San Francisco to Philadelphia flights
Seattle to Baltimore flights
San Francisco to Baltimore flights
Atlanta to Baltimore flights
Seattle to Philadelphia flights
O'Hare Intl to Dulles Intl flights
Boston to Philadelphia flights
Atlanta to Dulles Intl flights
O'Hare Intl to Reagan-National flights
O'Hare Intl to Baltimore flights
Denver to Philadelphia flights
Orlando to Baltimore flights
Atlanta to Reagan-National flights
San Diego to Dulles Intl flights
Hobby to Baltimore flights
Hobby to Reagan-National flights
Orlando to Philadelphia flights
Fort Lauderdale to Philadelphia flights
Tampa to Baltimore flights
Ontario to Dulles Intl flights
Hobby to Philadelphia flights
Orlando to Reagan-National flights
Tampa to Dulles Intl flights
Denver to Baltimore flights
San Diego to Reagan-National flights
Orlando to Dulles Intl flights
Los Angeles to Philadelphia flights
Fort Lauderdale to Baltimore flights
Midway to Baltimore flights
Tampa to Reagan-National flights
John F Kennedy Intl to Dulles Intl flights
Minneapolis to Dulles Intl flights
George Bush Intcntl to Philadelphia flights
Denver to Dulles Intl flights
John F Kennedy Intl to Reagan-National flights

Top 4 airlines flying from Idaho to Baltimore

Discover the top 4 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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$300Average$456FlexibilityNo cancel feeOn-time75%
DeltaCheapest$304Average$448FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$305Average$671FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$379Average$464FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.