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Delaware

$110+ 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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — ILG
dic. 3 — dic. 101
mié. 12/3
mié. 12/10
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 noviembre 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$314
(Alaska Airlines)

One-way from

$110
(Kiwi.com)

Popular in

October

Cheapest in

January

Average price

$446
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. 7% potential increase in price ($37 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 November 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 noviembre 3, 2025.

This Alaska Airlines deal was found by Cheapflights users on 11/3. 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.
jue. 12/48:47 pmGEG - PHL
1 stop29h 59mAlaska Airlines
lun. 12/87:06 amPHL - GEG
1 stop20h 18mAlaska Airlines
Deal found 11/3$314
This Delta deal was found by Cheapflights users on 11/3. 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.
jue. 12/49:25 amGEG - PHL
2 stops11h 32mDelta
lun. 12/87:05 amPHL - GEG
2 stops14h 50mDelta
Deal found 11/3$326
This Alaska Airlines deal was found by Cheapflights users on 11/2. 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.
mar. 12/212:19 pmBOI - PHL
1 stop27h 34mAlaska Airlines
mar. 12/96:54 pmPHL - BOI
1 stop22h 32mAlaska Airlines
Deal found 11/2$352
This Delta deal was found by Cheapflights users on 11/3. 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.
jue. 11/2711:10 amBOI - PHL
2 stops9h 40mDelta
mié. 12/36:18 amPHL - BOI
1 stop10h 00mDelta
Deal found 11/3$353
This Alaska Airlines deal was found by Cheapflights users on 11/2. 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.
lun. 12/19:09 pmGEG - PHL
1 stop29h 37mAlaska Airlines
lun. 12/87:06 amPHL - GEG
1 stop20h 18mAlaska Airlines
Deal found 11/2$363
This Delta deal was found by Cheapflights users on 11/2. 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.
mar. 12/28:45 amBOI - PHL
1 stop6h 55mDelta
mar. 12/912:22 pmPHL - BOI
2 stops14h 20mDelta
Deal found 11/2$368
This Delta deal was found by Cheapflights users on 11/1. 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.
jue. 11/278:45 amBOI - PHL
1 stop6h 52mDelta
dom. 12/76:18 amPHL - BOI
2 stops11h 44mDelta
Deal found 11/1$380
This American Airlines deal was found by Cheapflights users on 11/2. 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.
mar. 12/3011:59 pmGEG - PHL
1 stop9h 56mAmerican Airlines
dom. 1/47:10 amPHL - GEG
1 stop7h 56mAmerican Airlines
Deal found 11/2$380
This Delta deal was found by Cheapflights users on 11/3. 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.
vie. 12/127:45 pmBOI - PHL
2 stops13h 06mDelta
lun. 12/156:50 pmPHL - BOI
1 stop7h 52mDelta
Deal found 11/3$382
This Delta deal was found by Cheapflights users on 11/2. 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.
lun. 12/17:15 pmGEG - PHL
1 stop7h 40mDelta
lun. 12/85:17 pmPHL - GEG
2 stops9h 54mDelta
Deal found 11/2$389
This Alaska Airlines deal was found by Cheapflights users on 11/3. 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.
vie. 12/126:03 amBOI - PHL
1 stop21h 43mAlaska Airlines
lun. 12/156:54 pmPHL - BOI
1 stop22h 32mAlaska Airlines
Deal found 11/3$403
This Delta deal was found by Cheapflights users on 11/3. 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.
mié. 11/261:49 pmBOI - PHL
1 stop9h 02mDelta
mié. 12/36:18 amPHL - BOI
1 stop10h 00mDelta
Deal found 11/3$407

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 noviembre 3, 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

jue. 12/4

8:47 pm-5:46 am

1 stop29h 59m

Philadelphia

lun. 12/8

6:54 pm-7:05 pm

1 stop27h 11m

$314

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

jue. 12/4

3:35 pm-5:50 am

2 stops11h 15m

Philadelphia

lun. 12/8

7:05 am-6:55 pm

2 stops14h 50m

$326

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

jue. 1/8

5:45 am-6:06 pm

1 stop9h 21m

Philadelphia

sáb. 1/10

7:06 pm-12:23 am

1 stop8h 17m

$349

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

jue. 11/27

11:10 am-10:50 pm

2 stops9h 40m

Philadelphia

mié. 12/3

6:18 am-2:18 pm

1 stop10h 00m

$353

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

jue. 1/8

5:00 am-6:54 pm

2 stops10h 54m

Philadelphia

sáb. 1/10

6:30 am-3:21 pm

2 stops11h 51m

$360

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

lun. 12/1

9:09 pm-5:46 am

1 stop29h 37m

Philadelphia

lun. 12/8

7:06 am-12:24 am

1 stop20h 18m

$363

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

mar. 1/27

12:19 pm-9:51 pm

1 stop7h 32m

Philadelphia

jue. 1/29

3:43 pm-9:52 pm

1 stop8h 09m

$369

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

mar. 1/27

11:20 am-10:00 pm

1 stop8h 40m

Philadelphia

jue. 1/29

5:40 am-3:20 pm

2 stops11h 40m

$374

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

lun. 1/12

1:48 pm-12:23 am

1 stop8h 35m

Philadelphia

jue. 1/15

6:05 am-2:04 pm

1 stop9h 59m

$379

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

mar. 12/30

11:59 pm-12:55 pm

1 stop9h 56m

Philadelphia

dom. 1/4

7:10 am-12:06 pm

1 stop7h 56m

$380

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

Showing 1-10 of 49 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
No data available for this route at this time. Please check back soon.

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.

  • How long is the flight from Idaho to Delaware?

    Departing from Idaho to Delaware will take you 7h 32m. Airlines will cover a distance of 2106 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 $110 on Frontier. Other airlines that offer cheap prices include Delta from $172 and American Airlines from $185 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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