Cheap flights from Knoxville to Portugal from $331
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 Portugal departing on 3/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Deals available from 900+ travel sites.
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Knoxville to Portugal
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
United Airlines flights from Knoxville to Portugal
Our best United Airlines deals on Knoxville to Portugal flight tickets
Lufthansa flights from Knoxville to Portugal
Our best Lufthansa deals on Knoxville to Portugal flight tickets
See travel insights to Portugal from
How to get the cheapest flight ticket from Knoxville to Portugal
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 cheapest month to fly to Portugal?
The cheapest month to fly to Portugal from Knoxville is in January. Flight prices, which tend to average around $629, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Portugal from Knoxville during February instead. Flights to Portugal in February, while not as cheap as those in January, still average around $639.
What is the cheapest day to depart on your flight to Portugal?
According to our data, Monday is the cheapest day to fly to Portugal from Knoxville. The lowest ticket price found for a Monday departure recently was $819. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Portugal is Saturday, with ticket prices averaging around $1,534.
What is the cheapest time of day to depart on your flight to Portugal?
Our most recent data shows that the best time of day to fly to Portugal is in the morning. Flights from Knoxville to Portugal during this time can be as low as $745. In the afternoon is when there is more demand to fly to Portugal, so prices are often more expensive at around $1,134 per ticket.
How far in advance should I book a flight to Portugal?
You are more likely to see cheaper flights to Portugal from Knoxville when booking 6 weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $1,000 when searching 6 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from Knoxville for as low as $777 on momondo.
What is the cheapest airline that flies from Knoxville McGhee Tyson to Portugal?
British Airways, Delta, and American Airlines are the most popular carriers operating from Knoxville McGhee Tyson to Portugal
What airlines fly to Portugal?
American Airlines, United Airlines and British Airways are the top three most popular airlines that fly to Portugal from Knoxville according to our data. American Airlines is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Portugal. Keep in mind that there are 4 different airlines that fly to Portugal on a routine basis, so you have a few additional options to choose from.
Cheap Knoxville to Portugal flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Knoxville to Portugal
When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Portugal?
Prices for flights from Knoxville McGhee Tyson Airport to Portugal were last updated today.
How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Portugal?
There are 3 operators available for flights from Knoxville McGhee Tyson Airport to Portugal as of February 2025.
How old do you have to be to fly from Knoxville McGhee Tyson Airport to Portugal?
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 Portugal.
What documentation or ID do you need to fly to Portugal?
The travel and health documents required for your trip to Portugal 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 Portugal. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Best airlines flying from Knoxville to Portugal
Compare and see reviews for airlines that fly from Knoxville to Portugal with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $590 | Free Cancellation | Rating 6.6 6,753 reviews | |||
| PriceFrom $602 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $603 | Free Cancellation | Rating 7.4 8,742 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Knoxville to Portugal?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Knoxville to Portugal. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Knoxville to Portugal with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Knoxville to Portugal flights to just show those with flexible booking policies.
How can momondo help me find flights from Knoxville to Portugal?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Portugal from Knoxville.
I’m not ready to book a flight from Knoxville to Portugal right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Knoxville to Portugal flights. All you need is a valid email address and we will do the rest; it is that quick and easy.