HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Delaware

$158+ 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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — ILG
Oct 18 — Oct 251
Sat 10/18
Sat 10/25
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Idaho to Delaware 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 Delaware

Keep the following information in mind while searching for Idaho to Delaware flight deals. Data was last updated September 18, 2025.

Round-trip from

$257
(Delta)

One-way from

$158
(Hawaiian Airlines)

Popular in

October

Cheapest in

January

Average price

$460
From Idaho to Delaware
Search Deals
One-way flight from Idaho to Delaware
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($44 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

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 September 18, 2025.

This Delta deal was found by Cheapflights users on 9/17. 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 11/76:55 pmJAC - PHL
1 stop8h 55mDelta
Sun 11/97:10 amPHL - JAC
1 stop6h 52mDelta
Deal found 9/17$257
This Hawaiian Airlines deal was found by Cheapflights users on 9/16. 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.
Wed 11/126:28 amBOI - PHL
1 stop9h 44mHawaiian Airlines
Sat 11/157:02 amPHL - BOI
1 stop10h 10mHawaiian Airlines
Deal found 9/16$326
This Alaska Airlines deal was found by Cheapflights users on 9/17. 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.
Sat 10/111:31 pmGEG - PHL
1 stop13h 09mAlaska Airlines
Tue 10/147:00 amPHL - GEG
1 stop8h 37mAlaska Airlines
Deal found 9/17$326
This Delta deal was found by Cheapflights users on 9/15. 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 11/612:51 pmGEG - PHL
1 stop9h 01mDelta
Tue 11/117:10 amPHL - GEG
1 stop7h 53mDelta
Deal found 9/15$327
This Kiwi.com deal was found by Cheapflights users on 9/18. 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.
Sun 11/1612:28 pmBOI - PHL
1 stop14h 21mMultiple Airlines
Thu 11/206:00 amPHL - BOI
2 stops35h 52mMultiple Airlines
Deal found 9/18$328
This American Airlines deal was found by Cheapflights users on 9/16. 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 11/122:16 pmBOI - PHL
1 stop7h 43mAmerican Airlines
Sat 11/151:50 pmPHL - BOI
2 stops10h 42mAmerican Airlines
Deal found 9/16$332
This Delta deal was found by Cheapflights users on 9/17. 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.
Sat 10/116:00 amGEG - PHL
1 stop8h 38mDelta
Wed 10/1512:23 pmPHL - GEG
2 stops13h 38mDelta
Deal found 9/17$332
This Orbitz deal was found by Cheapflights users on 9/17. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/185:38 pmBOI - PHL
1 stop10h 02mMultiple Airlines
Thu 10/236:42 amPHL - BOI
1 stop7h 01mMultiple Airlines
Deal found 9/17$335
This Expedia deal was found by Cheapflights users on 9/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/117:30 amGEG - PHL
1 stop7h 41mMultiple Airlines
Thu 10/166:42 amPHL - GEG
1 stop7h 26mMultiple Airlines
Deal found 9/17$335
This Alaska Airlines deal was found by Cheapflights users on 9/18. 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.
Sat 10/181:35 pmBOI - PHL
1 stop14h 05mAlaska Airlines
Sat 10/257:00 amPHL - BOI
1 stop9h 36mAlaska Airlines
Deal found 9/18$336
This Alaska Airlines deal was found by Cheapflights users on 9/17. 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 10/108:54 pmGEG - PHL
1 stop18h 17mAlaska Airlines
Tue 10/147:00 amPHL - GEG
1 stop8h 37mAlaska Airlines
Deal found 9/17$336
This Delta deal was found by Cheapflights users on 9/16. 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 11/1211:13 amBOI - PHL
2 stops10h 37mDelta
Sat 11/156:00 amPHL - BOI
2 stops13h 03mDelta
Deal found 9/16$337

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 September 18, 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

JacksonPhiladelphia

JAC - PHL

JACPHL

Jackson Hole

Fri 11/7

6:55 pm-5:50 am

1 stop8h 55m

Philadelphia

Sun 11/9

7:10 am-12:02 pm

1 stop6h 52m

$257

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Sat 10/11

11:46 am-5:40 am

1 stop14h 54m

Philadelphia

Wed 10/15

7:11 pm-12:27 am

1 stop8h 16m

$326

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Sat 10/11

1:31 pm-5:40 am

1 stop13h 09m

Philadelphia

Tue 10/14

7:00 am-12:37 pm

1 stop8h 37m

$326

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Wed 12/10

6:00 am-5:32 pm

1 stop8h 32m

Philadelphia

Mon 12/15

6:15 am-1:08 pm

1 stop9h 53m

$327

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Sat 10/11

6:00 am-5:38 pm

1 stop8h 38m

Philadelphia

Wed 10/15

12:23 pm-11:01 pm

2 stops13h 38m

$332

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Sat 10/11

6:00 am-5:38 pm

1 stop8h 38m

Philadelphia

Tue 10/14

5:30 am-1:29 pm

2 stops10h 59m

$332

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Sat 10/18

1:35 pm-5:40 am

1 stop14h 05m

Philadelphia

Sat 10/25

7:00 am-2:36 pm

1 stop9h 36m

$336

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Mon 10/20

5:38 pm-5:40 am

1 stop10h 02m

Philadelphia

Thu 10/23

7:00 am-2:36 pm

1 stop9h 36m

$336

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Fri 10/10

8:54 pm-6:11 pm

1 stop18h 17m

Philadelphia

Tue 10/14

7:00 am-12:37 pm

1 stop8h 37m

$336

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Mon 11/17

5:25 pm-5:25 am

1 stop10h 00m

Philadelphia

Thu 11/20

3:56 pm-11:37 pm

1 stop9h 41m

$337

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 56 results
1
2
3
...
6

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 8h 55m. Airlines will cover a distance of 1833 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 $158 on Hawaiian Airlines. Other airlines that offer cheap prices include Delta from $164 and Alaska Airlines from $168 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

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 Delaware

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to John F Kennedy Intl flights
John F Kennedy Intl to Miami flights
John F Kennedy Intl to Los Angeles flights
Dallas/Fort Worth to John F Kennedy Intl flights
Dallas/Fort Worth to LaGuardia flights
John F Kennedy Intl to Las Vegas flights
Dallas/Fort Worth to Las Vegas flights
LaGuardia to O'Hare Intl flights
John F Kennedy Intl to O'Hare Intl flights
John F Kennedy Intl to Dallas/Fort Worth flights
San Francisco to John F Kennedy Intl flights
Los Angeles to Newark flights
LaGuardia to Fort Lauderdale flights
Newark to Fort Lauderdale flights
Los Angeles to Seattle flights
Newark to O'Hare Intl flights
LaGuardia to Dallas/Fort Worth flights
Newark to Miami flights
O'Hare Intl to John F Kennedy Intl flights
Newark to Las Vegas flights
John F Kennedy Intl to Orlando flights
LaGuardia to Miami flights
O'Hare Intl to LaGuardia flights
O'Hare Intl to Dallas/Fort Worth flights
Dallas/Fort Worth to O'Hare Intl flights
Dulles Intl to Dallas/Fort Worth flights
John F Kennedy Intl to San Francisco flights
Dallas/Fort Worth to Denver flights
Seattle to Las Vegas flights
Atlanta to John F Kennedy Intl flights
Seattle to Dallas/Fort Worth flights
O'Hare Intl to Las Vegas flights
Los Angeles to LaGuardia flights
Dallas/Fort Worth to Newark flights
San Francisco to Newark flights
San Francisco to Las Vegas flights
O'Hare Intl to Newark flights
Newark to Orlando flights
Seattle to Los Angeles flights
Los Angeles to San Francisco flights
John F Kennedy Intl to Atlanta flights
John F Kennedy Intl to Fort Lauderdale flights
LaGuardia to Orlando flights
Dallas/Fort Worth to Seattle flights
Atlanta to LaGuardia flights
Baltimore to Dallas/Fort Worth flights
Seattle to Sky Harbor Intl flights
Newark to Dallas/Fort Worth flights
Newark to Los Angeles flights
Dallas/Fort Worth to Los Angeles flights

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.