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

One-way options have recently been found by users for as low as $116 on Frontier. Other airlines that offer cheap prices include American Airlines from $265 and Delta from $295 one-way.

How far in advance should I book a flight from Knoxville to Delaware?

Travelers have found it’s best to book a flight 42 days in advance to save up to 268% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 42 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Knoxville to Delaware 1-2 weeks in advance for as low as $189, or $460 for flights within the next 24 hours.

What is the cheapest month to fly from Knoxville to Delaware?

June is one of the best times of the year to fly to Delaware from Knoxville. Prices for June average $369 per person but you can even find prices for as low as $68. The most expensive prices can be found in the month of April. Opting for a June flight can save you 37% on your journey compared to booking in April

What is the cheapest time of day to fly from TYS to DE?

When flying from Knoxville to Delaware, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

$109+ Flights from Knoxville to Delaware

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Cheap flight deals from Knoxville to Delaware

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$241 (Frontier)
One-way from	$109 (Mytrip)
Popular in	April
Cheapest in	June
Average price	$288

Provider with most accurate pricing for Knoxville McGhee Tyson-Philadelphia flight deals.

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Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Philadelphia flights.

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From Knoxville McGhee Tyson to Delaware

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One-way flight from Knoxville McGhee Tyson to Delaware

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Highest demand for flights based on searches. 12% potential increase in price ($51 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).

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Average for round-trip flights in May 2025

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Find 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 1, 2025.

Sun 6/85:25 pmTYS - PHL

1 stop11h 45mFrontier

Sun 6/156:15 amPHL - TYS

1 stop10h 14mFrontier

Deal found 4/30

$241

Wed 5/145:02 pmTYS - PHL

1 stop16h 51mMultiple Airlines

Thu 5/226:00 amPHL - TYS

1 stop28h 16mMultiple Airlines

Deal found 4/29

$268

Sat 5/2410:05 amTYS - PHL

1 stop6h 54mAmerican Airlines

Sun 5/2510:41 amPHL - TYS

1 stop8h 33mAmerican Airlines

Deal found 4/30

$347

Tue 7/812:03 pmTYS - PHL

1 stop4h 12mDelta

Sat 7/128:00 amPHL - TYS

1 stop5h 54mDelta

Deal found 4/29

$375

Wed 8/209:55 amTYS - PHL

1 stop4h 11mUnited Airlines

Sat 8/237:58 pmPHL - TYS

1 stop3h 59mUnited Airlines

Deal found 4/29

$445

Best flights from Knoxville to Delaware
Discover carefully curated flight deals from Knoxville to Delaware that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 1, 2025.

Sun 6/85:25 pmTYS - PHL

1 stop11h 45mFrontier

Sun 6/156:15 amPHL - TYS

1 stop10h 14mFrontier

Deal found 4/30

$241

Wed 5/145:02 pmTYS - PHL

1 stop16h 51mMultiple Airlines

Thu 5/226:00 amPHL - TYS

1 stop28h 16mMultiple Airlines

Deal found 4/29

$268

Sat 5/2410:05 amTYS - PHL

1 stop6h 54mAmerican Airlines

Sun 5/2510:41 amPHL - TYS

1 stop8h 33mAmerican Airlines

Deal found 4/30

$347

Tue 7/812:03 pmTYS - PHL

1 stop4h 12mDelta

Sat 7/128:00 amPHL - TYS

1 stop5h 54mDelta

Deal found 4/29

$375

Wed 8/209:55 amTYS - PHL

1 stop4h 11mUnited Airlines

Sat 8/237:58 pmPHL - TYS

1 stop3h 59mUnited Airlines

Deal found 4/29

$445

Last-minute flights from Knoxville to Delaware
Discover last-minute flight deals from Knoxville to Delaware. Data last updated May 1, 2025 and is based on user searches.

Thu 5/15:30 amTYS - PHL

1 stop3h 50mDelta

Sat 5/35:20 amPHL - TYS

1 stop4h 20mDelta

Deal found 4/30

$515

Mon 5/55:15 pmTYS - PHL

2 stops26h 21mMultiple Airlines

Tue 5/137:12 pmPHL - TYS

2 stops21h 00mMultiple Airlines

Deal found 4/30

$413

Tue 5/610:50 amTYS - PHL

1 stop6h 50mUnited Airlines

Fri 5/910:44 amPHL - TYS

1 stop23h 21mUnited Airlines

Deal found 4/29

$529

Thu 5/810:05 amTYS - PHL

1 stop6h 54mAmerican Airlines

Mon 5/1210:41 amPHL - TYS

1 stop8h 33mAmerican Airlines

Deal found 4/30

$437

Wed 5/145:02 pmTYS - PHL

1 stop16h 51mMultiple Airlines

Thu 5/226:00 amPHL - TYS

1 stop28h 16mMultiple Airlines

Deal found 4/29

$268

Sat 5/2410:05 amTYS - PHL

1 stop6h 54mAmerican Airlines

Sun 5/2510:41 amPHL - TYS

1 stop8h 33mAmerican Airlines

Deal found 4/30

$347

Sat 5/249:55 amTYS - PHL

1 stop4h 14mUnited Airlines

Sun 5/252:50 pmPHL - TYS

2 stops7h 50mUnited Airlines

Deal found 4/30

$450

One-way flights from Knoxville to Delaware
Search for one-way flight options from Knoxville to Delaware. Find affordable one-way fares based on user searches. Data last updated May 1, 2025.

Mon 5/1210:00 amTYS - PHL

1 stop21h 48mMultiple Airlines

Deal found 4/30

$109

Thu 5/295:30 pmTYS - PHL

1 stop11h 37mFrontier

Deal found 4/30

$116

Sun 5/1110:55 amTYS - PHL

Nonstop1h 53mAmerican Airlines

Deal found 4/30

$265

Sat 8/26:42 amTYS - PHL

1 stop27h 55mDelta

Deal found 4/29

$295

Fri 8/15:00 pmTYS - PHL

1 stop29h 31mUnited Airlines

Deal found 4/29

$302

Cheapflights Fare Finder

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

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Sun 6/8

5:25 pm-5:10 am

1 stop11h 45m

Philadelphia

Sun 6/15

6:15 am-4:29 pm

1 stop10h 14m

$241

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Wed 5/14

5:02 pm-9:53 am

1 stop16h 51m

Philadelphia

Thu 5/22

6:00 am-10:16 am

1 stop28h 16m

$268

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Sat 5/24

10:05 am-4:59 pm

1 stop6h 54m

Philadelphia

Sun 5/25

10:41 am-7:14 pm

1 stop8h 33m

$347

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Tue 7/8

12:03 pm-4:15 pm

1 stop4h 12m

Philadelphia

Sat 7/12

8:00 am-1:54 pm

1 stop5h 54m

$375

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Wed 8/20

9:55 am-2:06 pm

1 stop4h 11m

Philadelphia

Sat 8/23

7:58 pm-11:57 pm

1 stop3h 59m

$445

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Mon 5/12

10:00 am-7:48 am

1 stop21h 48m

$109

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Thu 5/29

5:30 pm-5:07 am

1 stop11h 37m

$116

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Sun 5/11

10:55 am-12:48 pm

Nonstop1h 53m

$265

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Sat 8/2

6:42 am-10:37 am

1 stop27h 55m

$295

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Fri 8/1

5:00 pm-10:31 pm

1 stop29h 31m

$302

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

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

Rainfall in Delaware 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

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

Peruse reviews from past customers who have flown with Delta, United Airlines and American Airlines from Knoxville to Delaware to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,934 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very good

7,934 reviews

Delta

8.0

Very good

7,934 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

8,696 reviews

Delta

8.0

Very good

7,934 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,934 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Frontier

6.0

Okay

3,287 reviews

Delta

8.0

Very good

7,934 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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.
What are the cheapest airlines to fly from Knoxville to Delaware one-way?
One-way options have recently been found by users for as low as $116 on Frontier. Other airlines that offer cheap prices include American Airlines from $265 and Delta from $295 one-way.
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

Browse thousands of different options on Cheapflights for your next trip

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$109+ 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Knoxville to Delaware with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap 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 1, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Knoxville to Delaware

Cheapest flights from Knoxville to DelawareExplore 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 1, 2025.

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 1, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Knoxville to Delaware that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from Knoxville to Delaware

Rainfall in Delaware by month

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

Temperature in Delaware by month

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

Reviews of airlines servicing Delaware

Peruse reviews from past customers who have flown with Delta, United Airlines and American Airlines from Knoxville to Delaware to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

How can I find direct flights from Knoxville to Delaware?

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

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 Knoxville to Delaware

See prices for flight routes from nearby airports that may be better suited for you.

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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 1, 2025.