$138 Cheap United flights from Portland to Knoxville (PDX to TYS)

Find The Best Day To Fly from Portland to Knoxville

Amazing United PDX to TYS Flight Deals

The cheapest flights to McGhee Tyson found within the past 7 days were $296 round trip and $138 one way. Prices and availability subject to change. Additional terms may apply.

Tue, Nov 11 - Sat, Nov 15
PDX
Portland
TYS
Knoxville
$296 Roundtrip, found 4 days ago
$296
Roundtrip
found 4 days ago
Select United flight, departing Tue, Nov 11 from Portland to Knoxville, returning Sat, Nov 15, priced at $296 found 4 days ago
Wed, Oct 22 - Wed, Oct 29
PDX
Portland
TYS
Knoxville
$302 Roundtrip, found 2 days ago
$302
Roundtrip
found 2 days ago
Select United flight, departing Wed, Oct 22 from Portland to Knoxville, returning Wed, Oct 29, priced at $302 found 2 days ago
Wed, Oct 22 - Wed, Oct 29
PDX
Portland
TYS
Knoxville
$302 Roundtrip, found 2 days ago
$302
Roundtrip
found 2 days ago
Select United flight, departing Wed, Oct 22 from Portland to Knoxville, returning Wed, Oct 29, priced at $302 found 2 days ago
Sat, Oct 25 - Fri, Oct 31
PDX
Portland
TYS
Knoxville
$309 Roundtrip, just found
$309
Roundtrip
just found
Select United flight, departing Sat, Oct 25 from Portland to Knoxville, returning Fri, Oct 31, priced at $309 just found
Sat, Oct 25 - Fri, Oct 31
PDX
Portland
TYS
Knoxville
$337 Roundtrip, just found
$337
Roundtrip
just found
Select United flight, departing Sat, Oct 25 from Portland to Knoxville, returning Fri, Oct 31, priced at $337 just found
Wed, Oct 22 - Wed, Oct 29
PDX
Portland
TYS
Knoxville
$344 Roundtrip, found 2 days ago
$344
Roundtrip
found 2 days ago
Select United flight, departing Wed, Oct 22 from Portland to Knoxville, returning Wed, Oct 29, priced at $344 found 2 days ago

TYS From PDX Economy Coach Packages on Similar Airlines

Price found within the past 48 hours. Click for updated prices.
Hampton Inn Gatlinburg Historic Nature Trail

Hampton Inn Gatlinburg Historic Nature Trail

2.5 out of 5
Save 100% on your flight
Price was $1,195, price is now $754 per person
$754
per person
Oct 18 - Oct 24
found 9 hours ago
Roundtrip flight included
Portland (PDX) to Knoxville (TYS)
River Terrace Resort & Convention Center

River Terrace Resort & Convention Center

3.5 out of 5
Save 100% on your flight
Price was $1,278, price is now $756 per person
$756
per person
Oct 18 - Oct 24
found 9 hours ago
Roundtrip flight included
Portland (PDX) to Knoxville (TYS)
Hilton Garden Inn Gatlinburg

Hilton Garden Inn Gatlinburg

3 out of 5
Save 100% on your flight
Price was $1,401, price is now $864 per person
$864
per person
Oct 18 - Oct 24
found 9 hours ago
Roundtrip flight included
Portland (PDX) to Knoxville (TYS)
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Frequently asked questions

Can I catch a flight from Portland Intl. Airport (PDX) to McGhee Tyson Airport (TYS) right now?
It's always wise to know about any travel advice reports and quarantine requirements in place in your destination. Be sure to go to our Covid-19 Travel Advisor for up-to-date information on catching a flight to McGhee Tyson Airport (TYS) from Portland Airport.
What terminal is United Airlines at PDX Airport?
Your ticket should tell you exactly which terminal your United Airlines flight will be departing from at Portland Airport. It might also be able to give you the arrival details for McGhee Tyson Airport (TYS). If not, you might like to consult your airline.
Are there United Airlines non-stop flights from PDX to TYS?
As you can't go nonstop from Portland Intl. Airport (PDX) to Knoxville Airport with United Airlines, make the most of your layover. Grab one of your favorite drinks at an inviting airport bar, or stroll about the terminal and indulge in some retail therapy.
How long is a United Airlines flight from PDX to TYS?
Lose yourself in a movie or two, enjoy a podcast or just recline your seat and relax. Whatever interests you, find a way to while away the 5 hours and 45 minutes that it takes to fly from PDX to TYS with United Airlines.
How many direct and indirect flights does United Airlines fly from PDX to TYS?
You'll have a lot of options if you choose to fly with United Airlines between PDX and TYS. It operates around 3 flights per day.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to Knoxville Airport, please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Discover our best United flight from Portland PDX to Knoxville TYS 

To find the best deals on flights to Portland from Knoxville with United, just enter your travel dates, filter by United, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from Portland PDX to Knoxville TYS with United 

If you’re planning a round trip, booking return flights with United is usually the most cost-effective option. With airfares ranging from $296 to $344, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way United flights from Portland PDX to Knoxville TYS 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way United flight from Portland to Knoxville costs from $138. Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to Knoxville TYS from  Portland PDX with United 

To find a cheap United flight from Portland PDX to Knoxville TYS, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on United flights from Portland PDX to Knoxville TYS 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as November, or if you book a flight with a stopover. 

 

Find nonstop flights from Portland PDX to Knoxville TYS with United 

If you’re keen to be on Knoxville soil fast, don’t waste time with a stopover—filter your search results to show direct United flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for United flights from Portland PDX to Knoxville TYS 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to Knoxville TYS from  Portland PDX with United on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

United Airports
Hop on a(n) United flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
ORDUSAO'Hare Intl.227
DENUSADenver Intl.226
IAHUSAGeorge Bush Intercontinental136
IADUSAWashington Dulles Intl.100
SFOUSASan Francisco Intl.64
LAXUSALos Angeles Intl.23
EWRUSALiberty Intl.20
FRADEUFrankfurt Intl.19
NRTJPNNarita Intl.19
PEKCHNCapital Intl.16

Travelers ❤️ these 🏨 after their flight to Knoxville

La Quinta Inn & Suites by Wyndham Knoxville Airport

La Quinta Inn & Suites by Wyndham Knoxville Airport

3 out of 5
126 Cusick Road, Alcoa, TN
This hotel features an indoor pool and a 24-hour gym. Traveling on business? Take advantage of the 24-hour business center, free WiFi in public areas, and free ...
8.8/10 Excellent! (1,595 reviews)
"Great customer service and comfortable. One night stay."

Reviewed on Sep 24, 2025

La Quinta Inn & Suites by Wyndham Knoxville Airport
Hilton Knoxville Airport

Hilton Knoxville Airport

3.5 out of 5
2001 Alcoa Hwy, Alcoa, TN
This hotel features a restaurant, an indoor pool, and a bar/lounge. Traveling on business? Take advantage of the 24-hour business center, free WiFi in public ...
9/10 Wonderful! (1,012 reviews)
"So nice to stay overnight next to the airport before an early morning flight. Can walk to the airport in the morning."

Reviewed on Sep 19, 2025

Hilton Knoxville Airport
Best Western Knoxville Airport/Alcoa

Best Western Knoxville Airport/Alcoa

2.5 out of 5
162 Cusick Rd, Alcoa, TN
This hotel features an indoor pool and a gym. Traveling on business? Take advantage of the 24-hour business center, free WiFi in public areas, and free airport ...
8.4/10 Very Good! (1,013 reviews)
"Easy, quick, friendly checkin. Walkable. Shuttle to airport. Room clean."

Reviewed on Sep 20, 2025

Best Western Knoxville Airport/Alcoa
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.