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Cheap flights from Knoxville to Portland from $156

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 6/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Knoxville to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:12 am - 10:32 am
TYS
-
PWM
4h 20m
1 stop
American Airlines Logo
5:57 pm - 11:47 pm
PWM
-
TYS
5h 50m
1 stop
$311American Airlines
Tue, Jun 2 - Tue, Jun 2
Southwest Logo
12:45 pm - 10:55 pm
TYS
-
PWM
10h 10m
2 stops
Southwest Logo
3:45 pm - 9:15 pm
PWM
-
TYS
5h 30m
1 stop
$316Southwest
Wed, Jun 17 - Wed, Jun 24
Delta Logo
5:35 pm - 11:09 pm
TYS
-
PWM
5h 34m
1 stop
Delta Logo
6:00 am - 11:01 am
PWM
-
TYS
5h 01m
1 stop
$325Delta
Sat, May 23 - Wed, Jun 17
Southwest Logo
12:45 pm - 10:55 pm
TYS
-
PWM
10h 10m
2 stops
Southwest Logo
5:30 am - 5:00 pm
PWM
-
TYS
11h 30m
2 stops
$327Southwest
Wed, Jun 17 - Wed, Jun 24
Delta Logo
5:35 pm - 11:29 pm
TYS
-
PWM
5h 54m
1 stop
Delta Logo
6:57 pm - 11:54 pm
PWM
-
TYS
4h 57m
1 stop
$331Delta
Wed, Jun 17 - Wed, Jun 24
Delta Logo
5:35 pm - 11:30 pm
TYS
-
PWM
5h 55m
1 stop
Delta Logo
6:15 am - 12:28 pm
PWM
-
TYS
6h 13m
1 stop
$335Delta
Tue, Jul 7 - Sat, Jul 11
Southwest Logo
12:45 pm - 10:55 pm
TYS
-
PWM
10h 10m
2 stops
Southwest Logo
3:45 pm - 9:15 pm
PWM
-
TYS
5h 30m
1 stop
$336Southwest
Wed, Jun 10 - Wed, Jun 24
Delta Logo
4:00 pm - 9:35 pm
TYS
-
PWM
5h 35m
1 stop
Delta Logo
6:15 am - 12:28 pm
PWM
-
TYS
6h 13m
1 stop
$339Delta
Sat, Jul 4 - Sat, Jul 11
American Airlines Logo
7:15 am - 1:22 pm
TYS
-
PWM
6h 07m
1 stop
American Airlines Logo
12:39 pm - 7:04 pm
PWM
-
TYS
6h 25m
2 stops
$344American Airlines
Sat, Sep 19 - Sat, Sep 26
Southwest Logo
12:45 pm - 10:55 pm
TYS
-
PWM
10h 10m
2 stops
Southwest Logo
5:30 am - 5:00 pm
PWM
-
TYS
11h 30m
2 stops
$347Southwest
Wed, Jun 10 - Wed, Jun 24

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Southwest flights from Knoxville to Portland, Maine

Our best Southwest deals on Knoxville to Portland, Maine flight tickets
Southwest
Jun 17
TYS12:45 pmKnoxville McGhee Tyson
10h 10m
2 stops
PWM10:55 pmPortland
Jun 24
PWM3:45 pmPortland
5h 30m
1 stop
TYS9:15 pmKnoxville McGhee Tyson
$316
Southwest
Jun 17
TYS12:45 pmKnoxville McGhee Tyson
10h 10m
2 stops
PWM10:55 pmPortland
Jun 24
PWM5:30 amPortland
11h 30m
2 stops
TYS5:00 pmKnoxville McGhee Tyson
$327
Southwest
Jun 10
TYS12:45 pmKnoxville McGhee Tyson
10h 10m
2 stops
PWM10:55 pmPortland
Jun 24
PWM3:45 pmPortland
5h 30m
1 stop
TYS9:15 pmKnoxville McGhee Tyson
$336

Delta flights from Knoxville to Portland, Maine

Our best Delta deals on Knoxville to Portland, Maine flight tickets
Delta
Jun 24
TYS5:35 pmKnoxville McGhee Tyson
5h 54m
1 stop
PWM11:29 pmPortland
Jun 29
PWM6:00 amPortland
7h 19m
1 stop
TYS1:19 pmKnoxville McGhee Tyson
$325
Delta
Jun 17
TYS5:35 pmKnoxville McGhee Tyson
5h 54m
1 stop
PWM11:29 pmPortland
Jun 24
PWM6:57 pmPortland
4h 57m
1 stop
TYS11:54 pmKnoxville McGhee Tyson
$331
Delta
Jul 7
TYS5:35 pmKnoxville McGhee Tyson
5h 55m
1 stop
PWM11:30 pmPortland
Jul 11
PWM6:15 amPortland
6h 13m
1 stop
TYS12:28 pmKnoxville McGhee Tyson
$335

momondo Fare Finder

 
Customize your flight search to find flights from Knoxville to Portland, Maine 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, momondo users made 832,500 searches. Data last updated May 7, 2026.
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
Quickest round-trip

KnoxvillePortland

TYS - PWM

TYSPWM

Knoxville McGhee Tyson

Tue 6/2

6:12 am-10:32 am

1 stop4h 20m

Portland

Tue 6/2

5:57 pm-11:47 pm

1 stop5h 50m

$311

KnoxvillePortland

TYS - PWM

TYSPWM

Knoxville McGhee Tyson

Wed 6/17

12:45 pm-10:55 pm

2 stops10h 10m

Portland

Wed 6/24

3:45 pm-9:15 pm

1 stop5h 30m

$316

KnoxvillePortland

TYS - PWM

TYSPWM

Knoxville McGhee Tyson

Sat 5/23

5:35 pm-11:09 pm

1 stop5h 34m

Portland

Wed 6/17

6:00 am-11:01 am

1 stop5h 01m

$325

KnoxvillePortland

TYS - PWM

TYSPWM

Knoxville McGhee Tyson

Wed 6/17

12:45 pm-10:55 pm

2 stops10h 10m

Portland

Wed 6/24

5:30 am-5:00 pm

2 stops11h 30m

$327

KnoxvillePortland

TYS - PWM

TYSPWM

Knoxville McGhee Tyson

Wed 6/17

5:35 pm-11:29 pm

1 stop5h 54m

Portland

Wed 6/24

6:57 pm-11:54 pm

1 stop4h 57m

$331

KnoxvillePortland

TYS - PWM

TYSPWM

Knoxville McGhee Tyson

Tue 7/7

5:35 pm-11:30 pm

1 stop5h 55m

Portland

Sat 7/11

6:15 am-12:28 pm

1 stop6h 13m

$335

KnoxvillePortland

TYS - PWM

TYSPWM

Knoxville McGhee Tyson

Wed 6/10

12:45 pm-10:55 pm

2 stops10h 10m

Portland

Wed 6/24

3:45 pm-9:15 pm

1 stop5h 30m

$336

KnoxvillePortland

TYS - PWM

TYSPWM

Knoxville McGhee Tyson

Sat 7/4

4:00 pm-9:35 pm

1 stop5h 35m

Portland

Sat 7/11

6:15 am-12:28 pm

1 stop6h 13m

$339

KnoxvillePortland

TYS - PWM

TYSPWM

Knoxville McGhee Tyson

Sat 9/19

7:15 am-1:22 pm

1 stop6h 07m

Portland

Sat 9/26

12:39 pm-7:04 pm

2 stops6h 25m

$344

KnoxvillePortland

TYS - PWM

TYSPWM

Knoxville McGhee Tyson

Wed 6/10

12:45 pm-10:55 pm

2 stops10h 10m

Portland

Wed 6/24

5:30 am-5:00 pm

2 stops11h 30m

$347

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Portland from

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

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?

The cheapest month to fly to Portland, Maine from Knoxville is in September. Flight prices, which tend to average around $298, 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 September, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $328.

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

Fastest flight time

4h 41m

Direct flights

None
The fastest flight from Knoxville to Portland, Maine takes 4h 41m
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 41m, 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?

  • 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?

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
United AirlinesPriceFrom $258Free CancellationRating
7.4
9,690 reviews
Search United Airlines flights
American AirlinesPriceFrom $258Free CancellationRating
7.1
11,669 reviews
Search American Airlines flights
DeltaPriceFrom $258Free CancellationRating
7.9
8,459 reviews
Search Delta flights
SouthwestPriceFrom $278Free CancellationRating
7.9
4,301 reviews
Search Southwest flights

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Boothbay Harbor
Jackson
Conway
Freeport
Lewiston
Brunswick
Bartlett
Gorham
Auburn
Windham
Intervale
Bath
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.

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