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Delaware

$29+ Cheap flights from Knoxville (TYS) 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 7/16. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — ILG
Jun 25 — Jul 21
Thu 6/25
Thu 7/2
1 adult, Economy
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Cheap flight deals from Knoxville to Delaware

Cheapest flights from Knoxville to Delaware
Explore the most affordable flight options available from Knoxville to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 26, 2026.

This Kiwi.com deal was found by Cheapflights users on 5/23. 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.
Thu 6/113:47 pm
TYS
-
PHL
Nonstop1h 50m
Allegiant Air
Thu 7/96:18 pm
PHL
-
TYS
Nonstop2h 03m
Allegiant Air
Deal found 5/23$59
This Kiwi.com deal was found by Cheapflights users on 5/24. 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.
Thu 6/113:47 pm
TYS
-
PHL
Nonstop1h 50m
Allegiant Air
Sun 6/146:26 pm
PHL
-
TYS
Nonstop2h 03m
Allegiant Air
Deal found 5/24$64
This Kiwi.com deal was found by Cheapflights users on 5/25. 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.
Thu 7/93:38 pm
TYS
-
PHL
Nonstop1h 50m
Allegiant Air
Sun 7/126:18 pm
PHL
-
TYS
Nonstop2h 03m
Allegiant Air
Deal found 5/25$68
This Kiwi.com deal was found by Cheapflights users on 5/23. 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 6/73:46 pm
TYS
-
PHL
Nonstop1h 50m
Allegiant Air
Sun 6/146:26 pm
PHL
-
TYS
Nonstop2h 03m
Allegiant Air
Deal found 5/23$69
This Kiwi.com deal was found by Cheapflights users on 5/24. 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.
Thu 6/113:47 pm
TYS
-
PHL
Nonstop1h 50m
Allegiant Air
Sun 6/216:45 pm
PHL
-
TYS
Nonstop2h 03m
Allegiant Air
Deal found 5/24$75
This Kiwi.com deal was found by Cheapflights users on 5/23. 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.
Thu 7/23:38 pm
TYS
-
PHL
Nonstop1h 50m
Allegiant Air
Thu 7/96:18 pm
PHL
-
TYS
Nonstop2h 03m
Allegiant Air
Deal found 5/23$82
This Kiwi.com deal was found by Cheapflights users on 5/23. 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 6/73:46 pm
TYS
-
PHL
Nonstop1h 50m
Allegiant Air
Thu 6/116:27 pm
PHL
-
TYS
Nonstop2h 03m
Allegiant Air
Deal found 5/23$85
This Kiwi.com deal was found by Cheapflights users on 5/23. 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.
Thu 6/43:47 pm
TYS
-
PHL
Nonstop1h 50m
Allegiant Air
Sun 6/76:26 pm
PHL
-
TYS
Nonstop2h 03m
Allegiant Air
Deal found 5/23$87

Find flight deals from Knoxville to Delaware

Keep the following information in mind while searching for Knoxville to Delaware flight deals. Data was last updated May 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$59
(Kiwi.com)

One-way from

$29
(Kiwi.com)

Popular in

April

Cheapest in

September

Average price

$452
Provider with most accurate pricing for Knoxville McGhee Tyson-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Philadelphia flights.
Search Deals
From Knoxville McGhee Tyson to Delaware
Search Deals
One-way flight from Knoxville McGhee Tyson to Delaware
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($31 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Knoxville 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 May 26, 2026.
Use the filters below to find and compare flights from Knoxville to Delaware that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Tue 9/1

8:00 am-4:00 pm

2 stops8h 00m

Philadelphia

Sat 9/5

1:10 pm-5:40 pm

1 stop4h 30m

$325

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Mon 8/24

7:10 am-4:00 pm

2 stops8h 50m

Philadelphia

Wed 8/26

10:45 am-6:55 pm

2 stops8h 10m

$351

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Thu 8/13

7:10 am-1:15 pm

1 stop6h 05m

Philadelphia

Sun 8/16

6:20 am-8:45 pm

2 stops14h 25m

$377
Quickest round-trip

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Tue 6/23

11:55 am-5:22 pm

1 stop5h 27m

Philadelphia

Tue 6/30

5:15 am-9:38 am

1 stop4h 23m

$419

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Tue 6/9

12:45 pm-10:50 pm

2 stops10h 05m

Philadelphia

Sun 6/14

12:25 pm-9:15 pm

2 stops8h 50m

$451

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Thu 6/11

7:30 am-5:50 pm

2 stops10h 20m

Philadelphia

Thu 7/9

12:50 pm-10:35 pm

2 stops9h 45m

$459

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Thu 6/11

7:45 pm-12:20 am

1 stop4h 35m

Philadelphia

Mon 6/15

11:20 am-9:10 pm

2 stops9h 50m

$460

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Wed 6/10

5:40 am-11:02 am

1 stop5h 22m

Philadelphia

Sat 6/13

7:10 am-12:32 pm

1 stop5h 22m

$465

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Mon 6/22

2:20 pm-12:20 am

2 stops10h 00m

Philadelphia

Mon 6/29

12:50 pm-9:10 pm

2 stops8h 20m

$467

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Fri 7/24

7:30 am-5:15 pm

2 stops9h 45m

Philadelphia

Mon 7/27

1:50 pm-9:15 pm

2 stops7h 25m

$496

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/21

Showing 1-10 of 21 resultsSorted by cheapest first
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Best time to book a flight from Knoxville to Delaware

Have a flexible travel schedule? Discover the best time to fly to Delaware from Knoxville 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 Knoxville 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 Knoxville to Delaware. 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 from for flights from Knoxville to Delaware?

    Knoxville McGhee Tyson (TYS) is the airport you will fly out of if you book a flight from Knoxville to Delaware. It is only a 11.3 mi journey to McGhee Tyson (TYS) from Knoxville’s city center.

  • How long is the flight from Knoxville to Delaware?

    Departing from Knoxville to Delaware will take you 5h 27m. There are 553 mi between Knoxville and Delaware. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Knoxville 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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