What airlines fly to Portland, Maine?

Allegiant Air, American Airlines and Delta are the top three most popular airlines that fly to Portland, Maine from Knoxville according to our data. Allegiant Air is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Portland, Maine. Keep in mind that there are 5 different airlines that fly to Portland, Maine on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Knoxville McGhee Tyson to Portland?

United Airlines, Delta, and American Airlines are the most popular carriers operating from Knoxville McGhee Tyson to Portland

When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Portland Airport?

Prices for flights from Knoxville McGhee Tyson Airport to Portland Airport were last updated today.

How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Portland Airport?

There are 3 operators available for flights from Knoxville McGhee Tyson Airport to Portland Airport as of October 2026.

How old do you have to be to fly from Knoxville McGhee Tyson Airport to Portland Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to Portland Airport.

What documentation or ID do you need to fly to Portland Airport?

The travel and health documents required for your trip to Portland Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portland Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$159 Cheap Flights from Knoxville to Portland, Maine in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Knoxville to Portland

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:24 pm - 10:56 pmTYS Knoxville McGhee Tyson-PWM Portland

7h 32m1 stop Charlotte Douglas

2:35 pm - 9:51 pmPWM Portland-TYS Knoxville McGhee Tyson

7h 16m1 stop Washington, D.C. Reagan-National

$317American Airlines

Fri, Feb 26 - Mon, Mar 1

6:10 am - 11:01 amTYS Knoxville McGhee Tyson-PWM Portland

4h 51m1 stop New York LaGuardia

11:25 am - 4:17 pmPWM Portland-TYS Knoxville McGhee Tyson

4h 52m1 stop New York LaGuardia

$317Delta

Fri, Jan 29 - Mon, Feb 1

6:30 am - 2:44 pmTYS Knoxville McGhee Tyson-PWM Portland

8h 14m1 stop Chicago O'Hare Intl

3:14 pm - 11:59 pmPWM Portland-TYS Knoxville McGhee Tyson

8h 45m2 stops Newark Washington, D.C. Dulles Intl

$368United Airlines

Sat, Jan 30 - Wed, Feb 3

6:05 am - 10:59 amTYS Knoxville McGhee Tyson-PWM Portland

4h 54m1 stop New York LaGuardia

6:00 am - 11:28 amPWM Portland-TYS Knoxville McGhee Tyson

5h 28m1 stop Atlanta Hartsfield-Jackson

$371Delta

Fri, Nov 20 - Mon, Nov 23

6:15 am - 2:33 pmTYS Knoxville McGhee Tyson-PWM Portland

8h 18m2 stops Newark Washington, D.C. Dulles Intl

9:10 am - 9:05 pmPWM Portland-TYS Knoxville McGhee Tyson

11h 55m2 stops Newark Chicago O'Hare Intl

$374United Airlines

Sat, Jan 30 - Wed, Feb 3

8:00 am - 2:40 pmTYS Knoxville McGhee Tyson-PWM Portland

6h 40m1 stop Baltimore/Washington

5:35 am - 6:40 pmPWM Portland-TYS Knoxville McGhee Tyson

13h 05m2 stops Baltimore/Washington Nashville Intl

$387Southwest

Fri, Jan 29 - Mon, Feb 1

10:55 am - 3:43 pmTYS Knoxville McGhee Tyson-PWM Portland

4h 48m1 stop Washington, D.C. Reagan-National

6:00 am - 11:12 amPWM Portland-TYS Knoxville McGhee Tyson

5h 12m1 stop Philadelphia

$390American Airlines

Fri, Oct 30 - Sun, Nov 1

6:00 am - 1:12 pmTYS Knoxville McGhee Tyson-PWM Portland

7h 12m1 stop New York LaGuardia

1:52 pm - 9:09 pmPWM Portland-TYS Knoxville McGhee Tyson

7h 17m1 stop New York LaGuardia

$412Delta

Thu, Oct 29 - Mon, Nov 2

7:05 am - 4:30 pmTYS Knoxville McGhee Tyson-PWM Portland

9h 25m2 stops Nashville Intl Baltimore/Washington

5:10 pm - 9:45 pmPWM Portland-TYS Knoxville McGhee Tyson

4h 35m1 stop Baltimore/Washington

$417Southwest

Fri, Nov 20 - Mon, Nov 23

6:05 pm - 11:59 pmTYS Knoxville McGhee Tyson-PWM Portland

5h 54m1 stop Washington, D.C. Reagan-National

12:09 pm - 7:32 pmPWM Portland-TYS Knoxville McGhee Tyson

7h 23m1 stop Charlotte Douglas

$507American Airlines

Sun, Oct 25 - Thu, Oct 29

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Delta flights from Knoxville to Portland, Maine

Our best Delta deals on Knoxville to Portland, Maine flight tickets

Delta

Nov 20

TYS6:05 amKnoxville McGhee Tyson

4h 54m

1 stop

PWM10:59 amPortland

Nov 23

PWM6:00 amPortland

5h 28m

1 stop

TYS11:28 amKnoxville McGhee Tyson

$371

Delta

Oct 29

TYS6:00 amKnoxville McGhee Tyson

7h 12m

1 stop

PWM1:12 pmPortland

Nov 2

PWM1:52 pmPortland

7h 17m

1 stop

TYS9:09 pmKnoxville McGhee Tyson

$412

American Airlines flights from Knoxville to Portland, Maine

Our best American Airlines deals on Knoxville to Portland, Maine flight tickets

American Airlines

Oct 30

TYS10:55 amKnoxville McGhee Tyson

4h 48m

1 stop

PWM3:43 pmPortland

Nov 1

PWM6:00 amPortland

5h 12m

1 stop

TYS11:12 amKnoxville McGhee Tyson

$390

American Airlines

Oct 25

TYS6:05 pmKnoxville McGhee Tyson

5h 54m

1 stop

PWM11:59 pmPortland

Oct 29

PWM12:09 pmPortland

7h 23m

1 stop

TYS7:32 pmKnoxville McGhee Tyson

$507

American Airlines

Oct 17

TYS6:05 pmKnoxville McGhee Tyson

4h 26m

1 stop

PWM10:31 pmPortland

Oct 25

PWM7:24 pmPortland

4h 31m

1 stop

TYS11:55 pmKnoxville McGhee Tyson

$651

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KnoxvillePortland

TYS Knoxville McGhee Tyson - PWM Portland

TYSPWM

Knoxville McGhee Tyson

Fri 2/26

3:24 pm-10:56 pm

1 stop7h 32m

Portland

Mon 3/1

2:35 pm-9:51 pm

1 stop7h 16m

$317

Quickest round-trip

KnoxvillePortland

TYS Knoxville McGhee Tyson - PWM Portland

TYSPWM

Knoxville McGhee Tyson

Fri 1/29

6:10 am-11:01 am

1 stop4h 51m

Portland

Mon 2/1

11:25 am-4:17 pm

1 stop4h 52m

$317

KnoxvillePortland

TYS Knoxville McGhee Tyson - PWM Portland

TYSPWM

Knoxville McGhee Tyson

Sat 1/30

6:30 am-2:44 pm

1 stop8h 14m

Portland

Wed 2/3

3:14 pm-11:59 pm

2 stops8h 45m

$368

KnoxvillePortland

TYS Knoxville McGhee Tyson - PWM Portland

TYSPWM

Knoxville McGhee Tyson

Fri 11/20

6:05 am-10:59 am

1 stop4h 54m

Portland

Mon 11/23

6:00 am-11:28 am

1 stop5h 28m

$371

KnoxvillePortland

TYS Knoxville McGhee Tyson - PWM Portland

TYSPWM

Knoxville McGhee Tyson

Sat 1/30

6:15 am-2:33 pm

2 stops8h 18m

Portland

Wed 2/3

9:10 am-9:05 pm

2 stops11h 55m

$374

KnoxvillePortland

TYS Knoxville McGhee Tyson - PWM Portland

TYSPWM

Knoxville McGhee Tyson

Fri 1/29

8:00 am-2:40 pm

1 stop6h 40m

Portland

Mon 2/1

5:35 am-6:40 pm

2 stops13h 05m

$387

KnoxvillePortland

TYS Knoxville McGhee Tyson - PWM Portland

TYSPWM

Knoxville McGhee Tyson

Fri 10/30

10:55 am-3:43 pm

1 stop4h 48m

Portland

Sun 11/1

6:00 am-11:12 am

1 stop5h 12m

$390

KnoxvillePortland

TYS Knoxville McGhee Tyson - PWM Portland

TYSPWM

Knoxville McGhee Tyson

Thu 10/29

6:00 am-1:12 pm

1 stop7h 12m

Portland

Mon 11/2

1:52 pm-9:09 pm

1 stop7h 17m

$412

KnoxvillePortland

TYS Knoxville McGhee Tyson - PWM Portland

TYSPWM

Knoxville McGhee Tyson

Fri 11/20

7:05 am-4:30 pm

2 stops9h 25m

Portland

Mon 11/23

5:10 pm-9:45 pm

1 stop4h 35m

$417

KnoxvillePortland

TYS Knoxville McGhee Tyson - PWM Portland

TYSPWM

Knoxville McGhee Tyson

Sun 10/25

6:05 pm-11:59 pm

1 stop5h 54m

Portland

Thu 10/29

12:09 pm-7:32 pm

1 stop7h 23m

$507

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Knoxville to Portland, Maine

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the typical price of a round-trip flight between Knoxville and Portland, Maine?

Prices are currently low for flights on this route.

Typical prices usually range from $428 to $788.
The lowest price recently found on this route was $371.

What is the cheapest month to fly to Portland, Maine?

The cheapest month to fly to Portland, Maine from Knoxville is in March. Flight prices, which tend to average around $314, are often lower during this time because this is during the off-season. If you aren’t able to travel to Portland, Maine during the month of March, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $368.

How have Knoxville to Portland, Maine flight prices changed over time?

When to book flights from Knoxville to Portland, Maine

Are you open to changing your travel dates? Check out the ideal times to fly from Knoxville to Portland, Maine according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Knoxville to Portland, Maine (TYS to PWM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Knoxville to Portland, Maine

Best Price Found	$159
Fastest flight time	4h 51m
Direct flights	None

The best one-way flight to Portland, Maine from Knoxville in the past 72 hours is $159. The best round-trip flight deal from Knoxville to Portland, Maine found on momondo in the last 72 hours is $317.

The fastest flight from Knoxville to Portland, Maine takes 4h 51m

There are no direct flights from Knoxville to Portland, Maine. There are no popular flight routes from Knoxville to Portland, Maine.

Search flight deals

Frequently asked questions about flying from Knoxville to Portland, Maine

How far is Knoxville McGhee Tyson to Portland by plane?
A flight from Knoxville McGhee Tyson to Portland will travel around 897.0 mi. Flights usually cover this in 4h 51m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Portland Airport?
Prices for flights from Knoxville McGhee Tyson Airport to Portland Airport were last updated today.
How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Portland Airport?
There are 3 operators available for flights from Knoxville McGhee Tyson Airport to Portland Airport as of October 2026.
How old do you have to be to fly from Knoxville McGhee Tyson Airport to Portland Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to Portland Airport.
What documentation or ID do you need to fly to Portland Airport?
The travel and health documents required for your trip to Portland Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portland Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Knoxville to Portland, Maine?
momondo data reveals that the most frequently booked airline on the route from Knoxville to Portland, Maine is Delta, representing 44% of all bookings. The subsequent popular airlines are Southwest at 29% and American Airlines at 27%.

Best airlines flying from Knoxville to Portland, Maine

Compare and see reviews for airlines that fly from Knoxville to Portland, Maine with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $278	Free Cancellation	Rating 7.0 12,164 reviews	Search American Airlines flights
Delta	PriceFrom $282	Free Cancellation	Rating 7.8 8,650 reviews	Search Delta flights
Southwest	PriceFrom $293	Free Cancellation	Rating 7.9 4,215 reviews	Search Southwest flights

North Conway

Jackson

Boothbay Harbor

Brunswick

Lewiston

Freeport

Conway

Auburn

Gorham

Bartlett

Bath

Windham

Oxford

Intervale

Georgetown

Falmouth

Tamworth

Why use momondo?

Why should I use momondo to find a flight deal from Knoxville to Portland?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Portland from Knoxville.

Can I find flights from Knoxville to Portland with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Portland from Knoxville with this policy.

How can momondo help me find flights from Knoxville to Portland?

Once all potential Knoxville to Portland flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Knoxville to Portland right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Knoxville to Portland now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Portland and let you know when they change.

An easier way to manage your Portland, Maine trip

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Cheap flights from Knoxville to Portland from $159

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to Portland departing on 11/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from Knoxville to Portland, Maine

Our best Delta deals on Knoxville to Portland, Maine flight tickets

American Airlines flights from Knoxville to Portland, Maine

Our best American Airlines deals on Knoxville to Portland, Maine flight tickets

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How to get the cheapest flight ticket from Knoxville to Portland, Maine

What is the typical price of a round-trip flight between Knoxville and Portland, Maine?

What is the cheapest month to fly to Portland, Maine?

How have Knoxville to Portland, Maine flight prices changed over time?

What is the cheapest airline that flies from Knoxville McGhee Tyson to Portland?

What airlines fly to Portland, Maine?

When to book flights from Knoxville to Portland, Maine

Cheap Knoxville to Portland, Maine (TYS to PWM) flight deals and tips

Best Price Found

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Direct flights

Frequently asked questions about flying from Knoxville to Portland, Maine

Best airlines flying from Knoxville to Portland, Maine

Compare and see reviews for airlines that fly from Knoxville to Portland, Maine with momondo

Traveling to a place near Portland?

Why use momondo?

An easier way to manage your Portland, Maine trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Maine

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Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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List of cabin classes available on flights landing in Portland. Availability may vary depending on flight origin and airline.

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