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Delaware

$100+ 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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — ILG
Feb 23 — Mar 21
Mon 2/23
Mon 3/2
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 January 24, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/23. 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 7/163:48 pm
TYS
-
PHL
Nonstop1h 50m
Allegiant Air
Sun 7/196:28 pm
PHL
-
TYS
Nonstop2h 03m
Allegiant Air
Deal found 1/23$178
This Kiwi.com deal was found by Cheapflights users on 1/23. 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 7/163:48 pm
TYS
-
PHL
Nonstop1h 50m
Allegiant Air
Thu 7/236:28 pm
PHL
-
TYS
Nonstop2h 03m
Allegiant Air
Deal found 1/23$187
This Kiwi.com deal was found by Cheapflights users on 1/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/29:36 pm
TYS
-
PHL
1 stop12h 17m
Multiple Airlines
Sun 3/85:08 pm
PHL
-
TYS
1 stop17h 53m
Multiple Airlines
Deal found 1/22$188
This Kiwi.com deal was found by Cheapflights users on 1/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/183:52 pm
TYS
-
PHL
1 stop16h 58m
Multiple Airlines
Tue 2/247:59 pm
PHL
-
TYS
1 stop14h 07m
Multiple Airlines
Deal found 1/22$214
This Kiwi.com deal was found by Cheapflights users on 1/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/279:36 pm
TYS
-
PHL
1 stop13h 47m
Multiple Airlines
Sun 3/110:59 pm
PHL
-
TYS
1 stop19h 32m
Multiple Airlines
Deal found 1/22$215
This Kiwi.com deal was found by Cheapflights users on 1/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1911:50 am
TYS
-
PHL
1 stop7h 14m
Multiple Airlines
Tue 2/247:59 pm
PHL
-
TYS
1 stop14h 07m
Multiple Airlines
Deal found 1/22$223
This Kiwi.com deal was found by Cheapflights users on 1/23. 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.
Wed 5/271:01 pm
TYS
-
PHL
1 stop10h 58m
Multiple Airlines
Sun 5/316:26 pm
PHL
-
TYS
Nonstop2h 03m
Multiple Airlines
Deal found 1/23$228
This Kiwi.com deal was found by Cheapflights users on 1/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1911:50 am
TYS
-
PHL
1 stop7h 14m
Multiple Airlines
Mon 2/235:05 am
PHL
-
TYS
1 stop13h 27m
Multiple Airlines
Deal found 1/22$230
This Kiwi.com deal was found by Cheapflights users on 1/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/59:13 pm
TYS
-
PHL
1 stop26h 51m
Multiple Airlines
Mon 4/1310:55 am
PHL
-
TYS
1 stop10h 53m
Multiple Airlines
Deal found 1/22$235
This Kiwi.com deal was found by Cheapflights users on 1/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1211:50 am
TYS
-
PHL
1 stop7h 14m
Multiple Airlines
Tue 2/177:59 pm
PHL
-
TYS
1 stop14h 09m
Multiple Airlines
Deal found 1/21$240
This Kiwi.com deal was found by Cheapflights users on 1/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/225:56 pm
TYS
-
PHL
2 stops31h 05m
Multiple Airlines
Sat 2/286:30 pm
PHL
-
TYS
1 stop26h 48m
Multiple Airlines
Deal found 1/21$242

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 January 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$188
(Kiwi.com)

One-way from

$100
(Kiwi.com)

Popular in

November

Cheapest in

January

Average price

$447
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. 5% potential increase in price ($28 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 January 24, 2026.
Use the filters below to find and compare flights from Knoxville to Delaware that are best for you.

Fly from

Knoxville

Fly to

Delaware

Route

Depart

Return

Price

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Wed 2/18

3:52 pm-8:50 am

1 stop16h 58m

Philadelphia

Tue 2/24

7:59 pm-10:06 am

1 stop14h 07m

$214

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Mon 3/2

9:36 pm-9:53 am

1 stop12h 17m

Philadelphia

Sun 3/8

5:30 am-11:26 pm

2 stops17h 56m

$221

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Thu 2/19

11:50 am-7:04 pm

1 stop7h 14m

Philadelphia

Mon 2/23

5:05 am-6:32 pm

1 stop13h 27m

$230

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Wed 1/28

4:47 pm-8:47 am

1 stop16h 00m

Philadelphia

Wed 2/4

4:55 pm-6:28 pm

1 stop25h 33m

$261

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Fri 2/20

2:06 pm-11:16 pm

1 stop9h 10m

Philadelphia

Mon 2/23

5:05 am-6:32 pm

1 stop13h 27m

$261

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Sat 2/21

8:00 am-12:21 am

1 stop16h 21m

Philadelphia

Sat 2/28

10:59 pm-10:07 pm

2 stops23h 08m

$273

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Thu 4/9

5:10 pm-12:16 am

1 stop7h 06m

Philadelphia

Mon 4/13

5:01 am-5:30 pm

1 stop12h 29m

$290

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Thu 2/19

6:30 am-5:01 pm

2 stops10h 31m

Philadelphia

Tue 2/24

7:59 pm-10:06 am

1 stop14h 07m

$294

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Fri 1/30

4:25 pm-7:13 pm

2 stops26h 48m

Philadelphia

Sun 2/1

5:39 pm-11:05 pm

1 stop5h 26m

$315

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Thu 2/19

11:50 am-7:04 pm

1 stop7h 14m

Philadelphia

Sun 2/22

7:23 am-8:42 pm

1 stop13h 19m

$330

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/23

Showing 1-10 of 21 results
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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.

  • 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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