$391 Find Cheap Flights from Oklahoma City to Portugal

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Oklahoma City to Portugal departing on 3/28. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Oklahoma City to Portugal

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lisbon
Lisbon2 stops$449
Faro
Faro2 stops$552
Lisbon
Lisbon2 stops$449
Faro
Faro2 stops$552

Book Cheap Oklahoma City to Portugal Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Oklahoma City to Portugal that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Oklahoma City to Portugal

Tue, Feb 24 - Tue, Mar 24
Multiple Airlines Logo
2:42 pm - 9:05 amOKC-LIS
12h 23m2 stops
Multiple Airlines Logo
4:10 pm - 7:40 pmLIS-OKC
32h 30m2 stops
$449Multiple Airlines
Find Deal
Fri, Jan 30 - Tue, Feb 3
United Airlines Logo
6:00 am - 8:10 amOKC-LIS
20h 10m2 stops
United Airlines Logo
10:15 am - 10:23 pmLIS-OKC
18h 08m2 stops
$485United Airlines
Find Deal
Fri, Jan 30 - Tue, Feb 3
Delta Logo
11:23 am - 10:35 amOKC-LIS
17h 12m2 stops
Delta Logo
10:00 am - 12:03 amLIS-OKC
20h 03m2 stops
$494Delta
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Thu, Dec 11 - Thu, Dec 18
United Airlines Logo
5:00 am - 9:20 amOKC-LIS
22h 20m2 stops
United Airlines Logo
10:55 am - 8:51 amLIS-OKC
27h 56m2 stops
$544United Airlines
Find Deal
Fri, Jan 30 - Tue, Feb 3
KLM Logo
8:00 am - 4:55 pmOKC-FAO
26h 55m2 stops
KLM Logo
7:45 pm - 8:39 pmFAO-OKC
30h 54m2 stops
$552KLM
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Tue, Apr 14 - Fri, Apr 24
United Airlines Logo
8:43 am - 9:20 amOKC-LIS
18h 37m2 stops
United Airlines Logo
11:25 am - 3:49 pmLIS-OKC
34h 24m2 stops
$612United Airlines
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Tue, Apr 14 - Fri, Apr 24
Multiple Airlines Logo
9:27 am - 11:10 amOKC-LIS
19h 43m3 stops
Multiple Airlines Logo
11:25 am - 9:58 pmLIS-OKC
16h 33m2 stops
$710Multiple Airlines
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Tue, Feb 24 - Tue, Mar 24
Multiple Airlines Logo
9:46 am - 9:20 amOKC-LIS
17h 34m3 stops
Multiple Airlines Logo
11:20 am - 6:47 pmLIS-OKC
36h 27m2 stops
$740Multiple Airlines
Find Deal
Tue, Feb 24 - Tue, Mar 24
Multiple Airlines Logo
9:46 am - 9:20 amOKC-LIS
17h 34m3 stops
Multiple Airlines Logo
11:20 am - 6:47 pmLIS-OKC
36h 27m2 stops
$744Multiple Airlines
Find Deal
Tue, Feb 24 - Tue, Mar 24
Multiple Airlines Logo
9:46 am - 9:20 amOKC-LIS
17h 34m3 stops
Multiple Airlines Logo
11:20 am - 6:47 pmLIS-OKC
36h 27m2 stops
$765Multiple Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Oklahoma City to Portugal flights

Get data-powered insights and trends into flights from Oklahoma City to Portugal to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Oklahoma City to Portugal?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Oklahoma City to Portugal, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Oklahoma City to Portugal is January, when tickets cost $673 (return) on average. On the other hand, the most expensive months are June and May, when the average cost of round-trip tickets is $1,411 and $1,369 respectively.

What’s the cheapest day of the week to fly from Oklahoma City to Portugal?

The average price of all round-trip flights from Oklahoma City to Portugal clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Portugal on a Wednesday and more expensive on a Sunday. On your return trip to Oklahoma City, you should consider flying back on a Friday, and avoid Sundays for better deals.

Good to know

Low seasonJanuary
Cheapest flight$391
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from Oklahoma City to Lisbon

FAQs - booking Portugal flights

  • How does KAYAK find such low prices on flights from Oklahoma City to Portugal?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Oklahoma City to Portugal.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Oklahoma City to Portugal?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Oklahoma City to Portugal is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Oklahoma City to Portugal?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Oklahoma City to Portugal with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Oklahoma City to Portugal?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Oklahoma City to Portugal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Portugal?

    The cheapest time of day to fly to Portugal is generally in the evening, when round-trip flights cost $1,053 on average. Morning departures are around 8% more expensive than evening flights, on average. The most expensive time of day to fly to Portugal is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,450.

Reviews of the top 3 airlines serving from Oklahoma City to Portugal

 
Need help choosing which airline to fly with from Oklahoma City to Portugal? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9056 reviews
7.3Comfort
8.1Crew
6.6Food
7.7Boarding
7.1Entertainment
Airline reviews

Seats had less pitch than a regional jet. Food was OK. Have to buy alcohol on US based carriers flying international. Boarding was a mess. Did not have bags but overhead space was gone quick. Would like to see the airlines enforce the one bag over and one bag under policy

6.0 GoodAnonymous, Nov 2025IAH - MEX
Read more United Airlines reviews

Seats had less pitch than a regional jet. Food was OK. Have to buy alcohol on US based carriers flying international. Boarding was a mess. Did not have bags but overhead space was gone quick. Would like to see the airlines enforce the one bag over and one bag under policy

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

from SFO-> FRA flight, AVML meal was significantly less compared to regular meal, especially no Desert, no Bread, no sides.

Very nice flight love the small aircraft. We had a wonderful flight attendant. Nice to see someone that really enjoys her job. Don't have her name but had a southern accent.

This was an older airplane. The cabin was constantly warm to hot throughout the 10 hour flight and there were no vents to personalize air flow. Also since it was an older plane, the material and comfort of the chairs were very uncomfortable. I left my flight with major soreness on my tailbone.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

Door to door, the crew and staff were amazing. It was a stressful travel day with delays, but they were focused on customers and doing what they could to get us to our destinations.

Even though we were delayed, we were able to make our connection

Seats in waiting area and on plane hard as rock. Fast internet on the flight was great! Crew was kind.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

I like that the crew kept us informed but we moved back and forth from gate to gate before the aircraft arrived.

The flight was delayed multiple times, again no fault of American but again the extra cost, for everything makes it feel like a cheap airline! Especially when flights are outrageously expensive already

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

I had a positive experience on American. I'm blind and traveling with a guide dog and the flight attendants were so kind, friendly, and helpful towards us. They checked in on us during the flight and they made us feel comfortable and welcomed. There was an hour delay before depature, but overall the flight was a smooth ride. I appreciate that there were no issues on this long flight back home.

We were told the flight was delayed 5 times, then it was moved to the next day.

More choices on snacks. Built-in video screen to enjoy entertainment choices.

we landed at cmh ten minutes early but had to sit on tarmac for twenty minutes because a plane was at our gate despite the fact that 3 other gates were open.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

I have a gluten allergy so did have any food

I have a gluten allergy so didn't have any food

Smooth trip no turbulence which is always a bonus for me lol! In cattle class so an element of being a bit squished (but not as bad as other shorter haul airlines) smaller plane than the one we flew out on and entertainment system wasn’t as modern but still definitely passed the time. Lovely crew x

I was attacked in the Miami airport and the staff did nothing. On my flight from London to Miami one of the flight attendants screamed at me and demanded I keep my seat in the upright position at all times during the fight so the man behind me was comfortable for the flight. I will never in my life use British airways again

Airlines have to stop assuming passengers bring entertainment. Provide it like you used to in business class and above!! N

I don't know about the others but the flight attendant that took care of us had the absolute wrong approach "how do we dare asking for water or anything else for that matter"

Flying on the Boeing 787 from Seattle to London was everything that I expected. Every thing was great.

Not my definition of first class. No leg room and barely any recline. The food was good. The crew was great. The comfort for the price I paid for London to Cairo was highway robbery. The Wi-Fi didn't work for me either.

Seat pitch is not enough to eat comfortably. When seat in front is reclined, your screen comes closer to your face. Ryanair seats are actually more comfortable.

Horrible leg room - coach seating with empty seat in middle on a 3 across seating. You buy business class for comfort which includes leg room. Absolutely no entertainment options either. Awful experience

The leg from Portland to Heathrow was great for a business class ticket. The BA leg from Heathrow to Lisbon was terrible. Basically coach seating with an empty seat between you and next passenger. Absolutely no leg room. Should not have been charged for business class and it was a 3 hour flight.

The flat beds. Other than that, the place was not clean.

Everything you need to know for your flight from Oklahoma City to Portugal

Information on your arrival and departure airports