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Delaware

$97+ Cheap flights from Idaho to Delaware

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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — ILG
Apr 27 — May 41
Sun 4/27
Sun 5/4
1 adult, Economy
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Cheap flight deals from Idaho to Delaware

Keep the following information in mind while searching for Idaho to Delaware flight deals. Data was last updated April 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$215
(Flightnetwork)

One-way from

$97
(Cheapflightsfares)

Popular in

October

Cheapest in

January

Average price

$462
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Philadelphia flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Philadelphia flights.
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From Idaho to Delaware
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One-way flight from Idaho to Delaware
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Highest demand for flights based on searches. 4% potential increase in price ($23 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Idaho to Delaware

Cheapest flights from Idaho to Delaware
Explore the most affordable flight options available from Idaho to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 22, 2025.

This Flightnetwork deal was found by Cheapflights users on 4/22. 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.
Thu 5/2211:49 amGEG - PHL
1 stop7h 16mFrontier
Thu 5/296:15 amPHL - GEG
1 stop7h 49mFrontier
Deal found 4/22$215
This Delta deal was found by Cheapflights users on 4/22. 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 6/247:05 pmGEG - PHL
1 stop7h 45mDelta
Tue 7/16:00 amPHL - GEG
1 stop7h 36mDelta
Deal found 4/22$315
This American Airlines deal was found by Cheapflights users on 4/22. 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.
Wed 6/113:29 pmJAC - PHL
1 stop7h 16mAmerican Airlines
Fri 6/136:15 amPHL - JAC
1 stop11h 37mAmerican Airlines
Deal found 4/22$326
This Alaska Airlines deal was found by Cheapflights users on 4/21. 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.
Mon 9/85:49 pmGEG - PHL
1 stop8h 56mAlaska Airlines
Sat 9/206:58 pmPHL - GEG
1 stop8h 01mAlaska Airlines
Deal found 4/21$332
This American Airlines deal was found by Cheapflights users on 4/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/79:12 amGEG - PHL
1 stop10h 48mAmerican Airlines
Sat 8/165:28 pmPHL - GEG
1 stop8h 27mAmerican Airlines
Deal found 4/21$333
This Delta deal was found by Cheapflights users on 4/22. 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 7/101:43 pmBOI - PHL
1 stop7h 20mDelta
Tue 7/156:15 amPHL - BOI
1 stop6h 42mDelta
Deal found 4/22$343
This Mytrip deal was found by Cheapflights users on 4/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/236:03 pmGEG - PHL
1 stop23h 22mMultiple Airlines
Mon 5/267:45 amPHL - GEG
1 stop12h 28mMultiple Airlines
Deal found 4/21$361
This United Airlines deal was found by Cheapflights users on 4/22. 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 5/172:43 pmBOI - PHL
1 stop6h 52mUnited Airlines
Mon 6/306:30 amPHL - BOI
1 stop7h 13mUnited Airlines
Deal found 4/22$372
This Delta deal was found by Cheapflights users on 4/21. 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 5/296:50 pmJAC - PHL
1 stop9h 00mDelta
Tue 6/311:55 amPHL - JAC
2 stops10h 53mDelta
Deal found 4/21$381
This American Airlines deal was found by Cheapflights users on 4/22. 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.
Sat 5/171:50 pmBOI - PHL
1 stop8h 04mAmerican Airlines
Tue 5/201:55 pmPHL - BOI
1 stop10h 05mAmerican Airlines
Deal found 4/22$391
This Hawaiian Airlines deal was found by Cheapflights users on 4/22. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/15:45 pmGEG - PHL
1 stop9h 16mHawaiian Airlines
Sat 11/87:25 amPHL - GEG
1 stop10h 24mHawaiian Airlines
Deal found 4/22$392
This American Airlines deal was found by Cheapflights users on 4/22. 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.
Wed 11/121:50 pmIDA - PHL
1 stop9h 04mAmerican Airlines
Mon 11/173:40 pmPHL - IDA
1 stop8h 21mAmerican Airlines
Deal found 4/22$399

Cheapflights Fare Finder

Customize your flight search to find flights from Idaho to Delaware 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 22, 2025.
Use the filters below to find and compare flights from Idaho to Delaware that are best for you.

Fly from

Idaho

Fly to

Delaware

Route

Depart

Return

Price

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Thu 5/22

11:49 am-10:05 pm

1 stop7h 16m

Philadelphia

Thu 5/29

6:15 am-11:04 am

1 stop7h 49m

$215

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Tue 6/24

7:05 pm-5:50 am

1 stop7h 45m

Philadelphia

Tue 7/1

6:00 am-10:36 am

1 stop7h 36m

$315

JacksonPhiladelphia

JAC - PHL

JACPHL

Jackson Hole

Wed 6/11

3:29 pm-12:45 am

1 stop7h 16m

Philadelphia

Fri 6/13

6:15 am-3:52 pm

1 stop11h 37m

$326

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Mon 9/8

5:49 pm-5:45 am

1 stop8h 56m

Philadelphia

Sat 9/20

6:58 pm-11:59 pm

1 stop8h 01m

$332

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Thu 8/7

9:12 am-11:00 pm

1 stop10h 48m

Philadelphia

Sat 8/16

5:28 pm-10:55 pm

1 stop8h 27m

$333

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Thu 7/10

1:43 pm-11:03 pm

1 stop7h 20m

Philadelphia

Tue 7/15

6:15 am-10:57 am

1 stop6h 42m

$343

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Fri 5/23

6:03 pm-8:25 pm

1 stop23h 22m

Philadelphia

Mon 5/26

7:45 am-5:13 pm

1 stop12h 28m

$361

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Sat 5/17

2:43 pm-11:35 pm

1 stop6h 52m

Philadelphia

Mon 6/30

6:30 am-11:43 am

1 stop7h 13m

$372

JacksonPhiladelphia

JAC - PHL

JACPHL

Jackson Hole

Thu 5/29

6:50 pm-5:50 am

1 stop9h 00m

Philadelphia

Tue 6/3

11:55 am-8:48 pm

2 stops10h 53m

$381

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Sat 5/17

1:50 pm-11:54 pm

1 stop8h 04m

Philadelphia

Tue 5/20

1:55 pm-10:00 pm

1 stop10h 05m

$391

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 40 results
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Best time to book a flight from Idaho to Delaware

Have a flexible travel schedule? Discover the best time to fly to Delaware 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 Delaware

Rainfall in Delaware by month

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

In terms of precipitation, rainfall in Delaware ranges from 2.9 - 4.3 inches per month. July is typically the wettest month, when rainfall can reach 4.3 in. February is typically the driest time to visit Delaware when rainfall is around 2.9 in.

Temperature in Delaware by month

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

If weather is an important factor for your trip to Delaware, 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 32.0 F).

Reviews of airlines servicing Delaware

Get insights into the airlines that provide service to Delaware. 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 Delaware. Reviews last updated April 22, 2025.
To help decide which airline to fly from Idaho to Delaware, see what other customers have to say about Alaska Airlines, Southwest and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,911 reviews

Food

7.1

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,911 reviews
Alaska Airlines
8.0
Very good
9,911 reviews

Food

7.1

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
9,911 reviews

Food

7.1

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,920 reviews
Alaska Airlines
8.0
Very good
9,911 reviews

Food

7.1

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Hawaiian Airlines
7.9
Good
2,392 reviews
Alaska Airlines
8.0
Very good
9,911 reviews

Food

7.1

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,683 reviews
Alaska Airlines
8.0
Very good
9,911 reviews

Food

7.1

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

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

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

    One-way options have recently been found by users for as low as $97 on Frontier. Other airlines that offer cheap prices include Delta from $154 and Hawaiian Airlines from $171 one-way.

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

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

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

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

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

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

See more FAQs

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