What airlines fly to Portland, Maine?

American Airlines, Allegiant Air and Delta are the top three most popular airlines that fly to Portland, Maine from Knoxville according to our data. American Airlines is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Portland, Maine. Keep in mind that there are 6 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?

American Airlines and Delta 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 August 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.

$152 Cheap Flights from Knoxville to Portland, Maine in 2026

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.

1:53 pm - 9:23 pmTYS Knoxville McGhee Tyson-PWM Portland

7h 30m1 stop Chicago O'Hare Intl

4:57 pm - 10:49 pmPWM Portland-TYS Knoxville McGhee Tyson

5h 52m1 stop Chicago O'Hare Intl

$303United Airlines

Sat, Sep 19 - Wed, Sep 23

7:25 pm - 11:59 pmTYS Knoxville McGhee Tyson-PWM Portland

4h 34m1 stop Washington, D.C. Dulles Intl

7:25 pm - 11:59 pmPWM Portland-TYS Knoxville McGhee Tyson

4h 34m1 stop Washington, D.C. Dulles Intl

$303United Airlines

Sat, Oct 10 - Wed, Oct 14

1:31 pm - 9:00 pmTYS Knoxville McGhee Tyson-PWM Portland

7h 29m1 stop Atlanta Hartsfield-Jackson

6:00 am - 1:21 pmPWM Portland-TYS Knoxville McGhee Tyson

7h 21m1 stop Atlanta Hartsfield-Jackson

$303Delta

Sat, Sep 19 - Wed, Sep 23

5:45 pm - 11:29 pmTYS Knoxville McGhee Tyson-PWM Portland

5h 44m1 stop Atlanta Hartsfield-Jackson

6:00 am - 10:44 amPWM Portland-TYS Knoxville McGhee Tyson

4h 44m1 stop Atlanta Hartsfield-Jackson

$303Delta

Wed, Sep 9 - Fri, Sep 11

11:08 am - 4:24 pmTYS Knoxville McGhee Tyson-PWM Portland

5h 16m1 stop Washington, D.C. Reagan-National

5:30 am - 11:43 amPWM Portland-TYS Knoxville McGhee Tyson

6h 13m1 stop Philadelphia

$303American Airlines

Tue, Sep 15 - Tue, Sep 22

3:53 pm - 10:13 pmTYS Knoxville McGhee Tyson-PWM Portland

6h 20m1 stop Charlotte Douglas

5:30 am - 11:43 amPWM Portland-TYS Knoxville McGhee Tyson

6h 13m1 stop Philadelphia

$303American Airlines

Tue, Sep 15 - Tue, Sep 22

7:25 pm - 11:59 pmTYS Knoxville McGhee Tyson-PWM Portland

4h 34m1 stop Washington, D.C. Dulles Intl

5:15 am - 10:37 amPWM Portland-TYS Knoxville McGhee Tyson

5h 22m1 stop Washington, D.C. Dulles Intl

$303United Airlines

Wed, Sep 30 - Wed, Oct 7

6:16 pm - 11:45 pmTYS Knoxville McGhee Tyson-PWM Portland

5h 29m1 stop Washington, D.C. Reagan-National

5:30 am - 11:43 amPWM Portland-TYS Knoxville McGhee Tyson

6h 13m1 stop Philadelphia

$303American Airlines

Tue, Sep 15 - Tue, Sep 22

1:00 pm - 10:35 pmTYS Knoxville McGhee Tyson-PWM Portland

9h 35m2 stops Orlando Baltimore/Washington

3:25 pm - 9:30 pmPWM Portland-TYS Knoxville McGhee Tyson

6h 05m1 stop Baltimore/Washington

$336Southwest

Wed, Oct 21 - Thu, Oct 29

1:00 pm - 10:35 pmTYS Knoxville McGhee Tyson-PWM Portland

9h 35m2 stops Orlando Baltimore/Washington

3:25 pm - 10:40 pmPWM Portland-TYS Knoxville McGhee Tyson

7h 15m2 stops Baltimore/Washington Nashville Intl

$341Southwest

Wed, Oct 21 - Thu, Oct 29

Cheap last minute flights

Enter your travel dates to find the best prices.

6:32 pm - 11:37 pmTYS Knoxville McGhee Tyson-PWM Portland

5h 05m1 stop Philadelphia

3:06 pm - 8:07 pmPWM Portland-TYS Knoxville McGhee Tyson

5h 01m1 stop Philadelphia

$628American Airlines

Fri, Aug 28 - Fri, Sep 4

11:15 am - 4:33 pmTYS Knoxville McGhee Tyson-PWM Portland

5h 18m1 stop Washington, D.C. Reagan-National

6:02 am - 10:45 amPWM Portland-TYS Knoxville McGhee Tyson

4h 43m1 stop Washington, D.C. Reagan-National

$636American Airlines

Tue, Aug 25 - Thu, Aug 27

10:40 am - 7:24 pmTYS Knoxville McGhee Tyson-PWM Portland

8h 44m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

5:15 am - 10:37 amPWM Portland-TYS Knoxville McGhee Tyson

5h 22m1 stop Washington, D.C. Dulles Intl

$641United Airlines

Tue, Aug 25 - Thu, Aug 27

7:00 am - 2:38 pmTYS Knoxville McGhee Tyson-PWM Portland

7h 38m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

3:45 pm - 11:59 pmPWM Portland-TYS Knoxville McGhee Tyson

8h 14m2 stops Newark Washington, D.C. Dulles Intl

$646United Airlines

Tue, Aug 25 - Thu, Aug 27

5:45 am - 10:04 amTYS Knoxville McGhee Tyson-PWM Portland

4h 19m1 stop Washington, D.C. Dulles Intl

6:53 pm - 2:37 pmPWM Portland-TYS Knoxville McGhee Tyson

19h 44m2 stops Newark Washington, D.C. Dulles Intl

$701United Airlines

Fri, Aug 28 - Fri, Sep 4

7:20 pm - 11:59 pmTYS Knoxville McGhee Tyson-PWM Portland

4h 39m1 stop Washington, D.C. Dulles Intl

6:03 am - 1:17 pmPWM Portland-TYS Knoxville McGhee Tyson

7h 14m1 stop Chicago O'Hare Intl

$702United Airlines

Fri, Aug 28 - Fri, Sep 4

7:00 am - 7:24 pmTYS Knoxville McGhee Tyson-PWM Portland

12h 24m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

6:03 am - 1:17 pmPWM Portland-TYS Knoxville McGhee Tyson

7h 14m1 stop Chicago O'Hare Intl

$707United Airlines

Fri, Aug 28 - Fri, Sep 4

7:00 am - 6:29 pmTYS Knoxville McGhee Tyson-PWM Portland

11h 29m2 stops Chicago O'Hare Intl Newark

6:53 pm - 10:37 amPWM Portland-TYS Knoxville McGhee Tyson

15h 44m2 stops Newark Washington, D.C. Dulles Intl

$747United Airlines

Fri, Aug 28 - Fri, Sep 4

7:00 am - 7:24 pmTYS Knoxville McGhee Tyson-PWM Portland

12h 24m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

6:53 pm - 2:37 pmPWM Portland-TYS Knoxville McGhee Tyson

19h 44m2 stops Newark Washington, D.C. Dulles Intl

$777United Airlines

Fri, Aug 28 - Fri, Sep 4

7:00 am - 2:38 pmTYS Knoxville McGhee Tyson-PWM Portland

7h 38m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

9:49 am - 8:53 pmPWM Portland-TYS Knoxville McGhee Tyson

11h 04m3 stops Washington, D.C. Dulles Intl Detroit Metropolitan Wayne County Chicago O'Hare Intl

$1,931United Airlines

Tue, Aug 25 - Thu, Aug 27

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American Airlines flights from Knoxville to Portland, Maine

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

American Airlines

Sep 15

TYS6:16 pmKnoxville McGhee Tyson

5h 29m

1 stop

PWM11:45 pmPortland

Sep 22

PWM5:30 amPortland

6h 13m

1 stop

TYS11:43 amKnoxville McGhee Tyson

$303

American Airlines

Sep 12

TYS3:53 pmKnoxville McGhee Tyson

6h 20m

1 stop

PWM10:13 pmPortland

Sep 19

PWM6:00 amPortland

5h 26m

1 stop

TYS11:26 amKnoxville McGhee Tyson

$331

American Airlines

Oct 19

TYS6:05 pmKnoxville McGhee Tyson

5h 31m

1 stop

PWM11:36 pmPortland

Oct 25

PWM6:00 amPortland

4h 23m

1 stop

TYS10:23 amKnoxville McGhee Tyson

$375

United Airlines flights from Knoxville to Portland, Maine

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

United Airlines

Sep 19

TYS1:53 pmKnoxville McGhee Tyson

9h 39m

2 stops

PWM11:32 pmPortland

Sep 23

PWM4:57 pmPortland

5h 52m

1 stop

TYS10:49 pmKnoxville McGhee Tyson

$308

United Airlines

Oct 10

TYS7:25 pmKnoxville McGhee Tyson

4h 34m

1 stop

PWM11:59 pmPortland

Oct 14

PWM7:25 pmPortland

4h 34m

1 stop

TYS11:59 pmKnoxville McGhee Tyson

$318

United Airlines

Sep 19

TYS7:20 pmKnoxville McGhee Tyson

4h 39m

1 stop

PWM11:59 pmPortland

Sep 26

PWM7:25 pmPortland

4h 34m

1 stop

TYS11:59 pmKnoxville McGhee Tyson

$321

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

Sat 9/19

1:53 pm-9:23 pm

1 stop7h 30m

Portland

Wed 9/23

4:57 pm-10:49 pm

1 stop5h 52m

$303

Quickest round-trip

KnoxvillePortland

TYS Knoxville McGhee Tyson - PWM Portland

TYSPWM

Knoxville McGhee Tyson

Sat 10/10

7:25 pm-11:59 pm

1 stop4h 34m

Portland

Wed 10/14

7:25 pm-11:59 pm

1 stop4h 34m

$303

KnoxvillePortland

TYS Knoxville McGhee Tyson - PWM Portland

TYSPWM

Knoxville McGhee Tyson

Sat 9/19

1:31 pm-9:00 pm

1 stop7h 29m

Portland

Wed 9/23

6:00 am-1:21 pm

1 stop7h 21m

$303

KnoxvillePortland

TYS Knoxville McGhee Tyson - PWM Portland

TYSPWM

Knoxville McGhee Tyson

Wed 9/9

5:45 pm-11:29 pm

1 stop5h 44m

Portland

Fri 9/11

6:00 am-10:44 am

1 stop4h 44m

$303

KnoxvillePortland

TYS Knoxville McGhee Tyson - PWM Portland

TYSPWM

Knoxville McGhee Tyson

Tue 9/15

11:08 am-4:24 pm

1 stop5h 16m

Portland

Tue 9/22

5:30 am-11:43 am

1 stop6h 13m

$303

KnoxvillePortland

TYS Knoxville McGhee Tyson - PWM Portland

TYSPWM

Knoxville McGhee Tyson

Tue 9/15

3:53 pm-10:13 pm

1 stop6h 20m

Portland

Tue 9/22

5:30 am-11:43 am

1 stop6h 13m

$303

KnoxvillePortland

TYS Knoxville McGhee Tyson - PWM Portland

TYSPWM

Knoxville McGhee Tyson

Wed 9/30

7:25 pm-11:59 pm

1 stop4h 34m

Portland

Wed 10/7

5:15 am-10:37 am

1 stop5h 22m

$303

KnoxvillePortland

TYS Knoxville McGhee Tyson - PWM Portland

TYSPWM

Knoxville McGhee Tyson

Tue 9/15

6:16 pm-11:45 pm

1 stop5h 29m

Portland

Tue 9/22

5:30 am-11:43 am

1 stop6h 13m

$303

KnoxvillePortland

TYS Knoxville McGhee Tyson - PWM Portland

TYSPWM

Knoxville McGhee Tyson

Wed 10/21

1:00 pm-10:35 pm

2 stops9h 35m

Portland

Thu 10/29

3:25 pm-9:30 pm

1 stop6h 05m

$336

KnoxvillePortland

TYS Knoxville McGhee Tyson - PWM Portland

TYSPWM

Knoxville McGhee Tyson

Wed 10/21

1:00 pm-10:35 pm

2 stops9h 35m

Portland

Thu 10/29

3:25 pm-10:40 pm

2 stops7h 15m

$341

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 $368 to $496.
The lowest price recently found on this route was $303.

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	$152
Fastest flight time	4h 34m
Direct flights	None

The best one-way flight to Portland, Maine from Knoxville in the past 72 hours is $152. The best round-trip flight deal from Knoxville to Portland, Maine found on momondo in the last 72 hours is $303.

The fastest flight from Knoxville to Portland, Maine takes 4h 34m

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 34m, 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 August 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 41% of all bookings. The subsequent popular airlines are American Airlines at 33% and Southwest at 26%.

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 7.1 11,986 reviews	Search American Airlines flights
Delta	PriceFrom $282	Free Cancellation	Rating 7.8 8,520 reviews	Search Delta flights
Southwest	PriceFrom $293	Free Cancellation	Rating 8.0 4,209 reviews	Search Southwest flights

North Conway

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Jackson

Lewiston

Brunswick

Freeport

Auburn

Gorham

Conway

Bartlett

Windham

Bath

Intervale

Oxford

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 $152

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 10/5. 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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American Airlines flights from Knoxville to Portland, Maine

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

United Airlines flights from Knoxville to Portland, Maine

Our best United 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

Fastest flight time

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

Fly your favorite airline to Portland

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

Cabin classes currently available on flights to Portland

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

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Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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