$598 Find Cheap Flights from Oklahoma City to Portugal

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Oklahoma City to Portugal departing on 11/18. 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

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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$598
Faro
Faro2 stops$870
Lisbon
Lisbon2 stops$598
Faro
Faro2 stops$870

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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Oklahoma City to Portugal

Tue, Nov 18 - Fri, Nov 28
United Airlines Logo
12:31 pm - 9:20 amOKC-LIS
14h 49m2 stops
United Airlines Logo
5:00 am - 7:14 pmLIS-OKC
20h 14m2 stops
$598United Airlines
Find Deal
Wed, Nov 19 - Fri, Nov 28
United Airlines Logo
12:31 pm - 2:50 pmOKC-LIS
20h 19m2 stops
United Airlines Logo
5:00 am - 10:11 pmLIS-OKC
23h 11m2 stops
$624United Airlines
Find Deal
Wed, Nov 19 - Fri, Nov 28
 Logo
10:19 am - 9:05 amOKC-LIS
16h 46m2 stops
 Logo
6:30 am - 7:56 pmLIS-OKC
19h 26m2 stops
Sat, Oct 11 - Sun, Oct 19
United Airlines Logo
12:07 pm - 9:20 amOKC-LIS
39h 13m2 stops
United Airlines Logo
12:55 pm - 11:21 amLIS-OKC
28h 26m2 stops
$814United Airlines
Find Deal
Sat, Oct 11 - Sun, Oct 19
United Airlines Logo
5:23 pm - 9:20 amOKC-LIS
33h 57m2 stops
United Airlines Logo
5:05 am - 7:11 pmLIS-OKC
20h 06m2 stops
$860United Airlines
Find Deal
Fri, Nov 28 - Tue, Dec 2
KLM Logo
8:20 am - 4:55 pmOKC-FAO
26h 35m2 stops
KLM Logo
7:45 pm - 11:53 pmFAO-OKC
34h 08m2 stops
$870KLM
Find Deal
Thu, Nov 13 - Thu, Nov 20
 Logo
10:19 am - 4:20 pmOKC-FNC
24h 01m3 stops
 Logo
12:00 pm - 11:49 pmFNC-OKC
41h 49m3 stops
$1,035
Find Deal
Sat, Oct 11 - Sun, Oct 19
Lufthansa Logo
12:28 pm - 11:25 amOKC-LIS
16h 57m2 stops
Lufthansa Logo
5:05 am - 10:15 pmLIS-OKC
23h 10m2 stops
$1,067Lufthansa
Find Deal
Fri, Sep 26 - Fri, Oct 3
Lufthansa Logo
4:07 pm - 3:10 pmOKC-FNC
41h 03m2 stops
Lufthansa Logo
3:35 pm - 9:42 pmFNC-OKC
36h 07m2 stops
$1,217Lufthansa
Find Deal
Tue, Sep 2 - Sat, Sep 6
Aer Lingus Logo
2:02 pm - 9:35 pmOKC-LIS
25h 33m2 stops
Aer Lingus Logo
10:15 pm - 8:53 pmLIS-OKC
28h 38m2 stops
$1,529Aer Lingus
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 $1,729 and $1,434 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$598
Best time to beat the crowds with an average 34% drop in price.
Most popular time to fly and prices are also 0% lower on average.
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 8916 reviews
7.7Boarding
7.3Comfort
7.1Entertainment
6.6Food
8.1Crew
Airline reviews

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

8.0 ExcellentBill, Aug 2025IAH - LAX
Read more United Airlines reviews

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Flight attendant in first class gave poor service (like he didn't want to be there) and food was awful. We sat waiting for gate upon arrival over 45 mins.

The pilots were late and it made us 1 hour late. The meat was tough and bok choy was also tough.

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

The service was good, the food could have been better.

Staff was rude. Didn’t give water for 2 hours. Worst service

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

This flight was perfect. No complaints and only the highest regard for the crew and ground staff and how they executed perfectly. I fly a lot with United and would request predictability and transparency in their operations instead of last minute changes.

This is for UA2274 from Houston to Sacramento. The flight was delayed arriving due to mechanical issues so we left about 3 hours later than scheduled. When boarding the plane the temperature inside was excessive - likely close to 100. Pilot apologized and said it was going to improve at altitude, which it did. But before that I honestly thought there might have been more delays removing passengers made ill from the heat. We were delayed leaving due to another mechanical issue. There was not water on the plane due to a panel that was not secured. They did that quickly, but the combination of mechanical issues was rather disturbing and did not reflect well on United.

The comfort of the seats was great, the crew eased my child’s anxieties and the fact that I had full cans of my beverage choice was great.

My flight got switched and my prepaid bag didnt transfer over properly so I paid to check ANOTHER BAG. I was placed in a middle seat and it was just miserable. At least it was a bulkhead row so I had legroom. The flight just never seem3d to end

4 hours late, including over +1 hour waiting in plane to take off. Baggage left behind too.

Sat on the ground in Cincinnati for 50 minutes before deplaning

While waiting to claim my checked luggage, I discovered the airline had lost it. After a long wait and inquiries, I discovered it was on another flight. Fortunately, the airline finally sent my luggage home.

Crew should be nicer and emphatic with customers. Same cookies as the past 20 years. Seat are ok and the plane was clean though it was delayed.

Was not able to watch most shows on the entertainment site. They would not load

As smooth as you can expect. Some issues with boarding because the previous plane took forever to deplane but overall, a good experience.

On Wednesday, July 30 we were in mid flight from Manchester to Charlotte and we turned around because the right engine was malfunctioning. That was the last flight out of Manchester that night. I was rebooked for Thursday, which became a weather event Friday. There were no seats left on the flight from Manchester to Charlotte. Consequently I didn’t leave Manchester until Saturday morning and we flew to Chicago so to say the least my scheduled flight and return to Iowa was three days off and it messed with my business schedule. Consequently cash flow. I would like some sort of acknowledgment of this event.

There is no room, no gluten free options, or any free internet/entertainment. You have to bring your own tablet or smartphone because there are no screens.

There was a slight delay. Otherwise, everything else was satisfactory.

Although the crew were great and the good nice, I might as well have been on Ryanair for the amount of space I had. Not good enough BA. I’d rather pay more and not feel like a human sardine.

The company that I bought my tickets through, Cheapflightsfares, failed to provide my confirmation information in a timely manner, so I was unable to check on at the country and therefore unable to make my flight. As a matter of fact, I STILL have not received the confirmation. After having read more and more reviews about the company, Cheapflightsfares appears to have scammed hundreds of hopeful travelers out of thousands of dollars. Please look into this company and, for the sake of anyone planning their next trip, stop allowing them to do business through you.

Love the A380 - loads of room. Headphone socket on my seat didn’t work. Sounds like a trivial issue? Well when flying long-haul the in-flight entertainment is what keeps you going so when it doesn’t work it’s a disaster. Pay attention to the details please BA. Spoiled what was otherwise an excellent flight with the usual brilliant crew.

Crew were fantastic can’t fault them at all. Couldn’t do enough for us

Crying baby the ENTIRE flight. Not your fault, but I paid 2700 for a premium economy ticket and it wasn't worth it. should have just stuck with coach. flight attendants very mediocre - minimal effort. Plane didn't seem very clean. Didn't have any cleansing wipes - most airlines give you this when you board. Flat screen scrolling didn't work. Toiletry case a joke - why bother at all?

The overall seat and cushion needs to be updated. It was hard and no support. My butt was numb for most of the flight. The food was subpar at best being in premium economy cost. The flight attendants were excellent and attentive during the whole flight. Disappointed I had to select our seats 24 hours prior.

Did not use entertainment Food great Stewards had an attitude, not the best but below average from my other flights with AA or BA

The plane was known to be late in advance of takeoff. My guess is that it was known to be late at 11am or 5 hours before scheduled takeoff time. We were late to leave and with a wheelchair and the a cart, we only made it to gate. We raced! Inside plane, all was great

I enjoyed the comfort of Premium Economy. The Purser on London-Nairobi was a little testy, snappish in his tone. I understand stressed, tired, etc but his tone in addressing passengers I found wanting.

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

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