$466 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 10/28. 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

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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$561
Faro
Faro2 stops$597
Lisbon
Lisbon2 stops$561
Faro
Faro2 stops$597

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
United Airlines Logo
9:38 am - 9:20 amOKC-LIS
17h 42m2 stops
United Airlines Logo
5:00 am - 10:17 pmLIS-OKC
22h 17m2 stops
$561United Airlines
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Fri, Nov 28 - Tue, Dec 2
KLM Logo
5:30 am - 4:55 pmOKC-FAO
29h 25m2 stops
KLM Logo
7:45 pm - 5:08 pmFAO-OKC
27h 23m2 stops
$597KLM
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Fri, Nov 28 - Fri, Dec 5
Multiple Airlines Logo
12:31 pm - 9:20 amOKC-LIS
14h 49m2 stops
Multiple Airlines Logo
5:00 am - 7:22 pmLIS-OKC
20h 22m2 stops
$609Multiple Airlines
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Sat, Nov 15 - Sat, Nov 22
United Airlines Logo
6:00 am - 8:55 amOKC-LIS
20h 55m2 stops
United Airlines Logo
5:00 am - 8:23 pmLIS-OKC
21h 23m2 stops
$661United Airlines
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Tue, Apr 14 - Sun, Apr 19
Scandinavian Airlines Logo
1:00 pm - 9:05 amOKC-LIS
38h 05m2 stops
Scandinavian Airlines Logo
7:15 am - 11:52 pmLIS-OKC
22h 37m2 stops
$670Scandinavian Airlines
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Mon, Nov 10 - Mon, Nov 17
Lufthansa Logo
1:40 pm - 2:50 pmOKC-LIS
19h 10m2 stops
Lufthansa Logo
6:10 am - 7:14 pmLIS-OKC
43h 04m2 stops
$700Lufthansa
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Tue, Feb 24 - Tue, Mar 24
Multiple Airlines Logo
9:51 am - 9:20 amOKC-LIS
17h 29m3 stops
Multiple Airlines Logo
11:20 am - 10:17 pmLIS-OKC
15h 57m2 stops
$723Multiple Airlines
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Fri, Mar 27 - Tue, Mar 31
United Airlines Logo
7:35 am - 8:10 amOKC-LIS
19h 35m2 stops
United Airlines Logo
7:30 am - 9:36 pmLIS-OKC
20h 06m2 stops
$819United Airlines
Find Deal
Fri, Mar 27 - Tue, Mar 31
United Airlines Logo
7:35 am - 8:10 amOKC-LIS
19h 35m2 stops
United Airlines Logo
7:30 am - 9:36 pmLIS-OKC
20h 06m2 stops
$864United Airlines
Find Deal
Fri, Mar 27 - Tue, Mar 31
American Airlines Logo
6:52 pm - 10:25 pmOKC-LIS
22h 33m2 stops
American Airlines Logo
7:15 am - 11:30 pmLIS-OKC
22h 15m2 stops
$895American 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
Best time to beat the crowds with an average 32% drop in price.
Most popular time to fly with an average 5% increase in price.

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 8979 reviews
7.3Comfort
7.1Entertainment
8.1Crew
7.7Boarding
6.6Food
Airline reviews

My husband and I recently had an unfortunate experience with Lufthansa. At the Philadelphia International airport, the ground staff refused to board us because we didn’t have a current visa stamped on our passports for Frankfurt. We completely understand that this was our mistake. we should have double-checked the visa requirements before our trip. However, the issue that upset us most was how the situation was handled by the staff. They told us they would mark it as “boarding denied due to visa issue”, but instead they recorded it as “no show”. Because of that incorrect entry, our return flight was automatically cancelled as well, which caused additional stress and expense. Mistakes can happen, but we expected more transparency and accuracy from a reputed airline like Lufthansa. It would have made a big difference if the staff had been more careful and considerate in documenting the situation correctly.

2.0 MediocreAnonymous, Oct 2025PHL - FRA
Read more United Airlines reviews

My husband and I recently had an unfortunate experience with Lufthansa. At the Philadelphia International airport, the ground staff refused to board us because we didn’t have a current visa stamped on our passports for Frankfurt. We completely understand that this was our mistake. we should have double-checked the visa requirements before our trip. However, the issue that upset us most was how the situation was handled by the staff. They told us they would mark it as “boarding denied due to visa issue”, but instead they recorded it as “no show”. Because of that incorrect entry, our return flight was automatically cancelled as well, which caused additional stress and expense. Mistakes can happen, but we expected more transparency and accuracy from a reputed airline like Lufthansa. It would have made a big difference if the staff had been more careful and considerate in documenting the situation correctly.

Flight was good but there are way to many announcements for credit cards etc.

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Flight was timely, relatively comfortable, with decent entertainment and food served. Only problem encountered was with the free messaging which I highly appreciate, but it did not work from iphone to non-iphones.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

The entertainment available didn’t work for anyone on the flight. Long 6 hr flight with no entertainment option and the staff didn’t know until an hour into the flight when we made sure they knew about it. They had no way to fix it.

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

The worst landing I have ever had on a domestic flight. Thought we would lose the landing gear on landing in Newark. Then we spent 40 minutes trying to position the plane in the right place to be able to get the jet way to the plane. The plane arrived stopped. The announcer was that we were there. Everybody got up, then we were told to sit back down because they had to have us towed to a different position. We got towed and then everyone stood up and they told us we were in the wrong position to sit back down again, and then we got towed to a different position This did not happen immediately. It was 30 minutes while we wandered around a small section of the tarmac in Newark close to the gate, but apparently not close enough. Horrifying experience The CAB should be investigating that flight

Food was poorly timed and not good.. Hand held snacks, really. I kept asking for water and never got any. Service was rushed for a 7-hour flight.

Boarding was organized. Old plane. Seat fairly comfortable. Business Class much too large so you don’t receive as much attention as you should considering what you pay for the seat.

A couple ladies from the crew were so rude and nasty. Thought they were mad at having to be there especially if you asked a question. This will make me think twice next time if I book a flight with you.

Delays to take off and to leave the plane after landing added a lot of time to this flight.

Poor seat in rear of aircraft Food at Admiral’s Club Terminal D at DFW inedible

Always seated jammed in rear of aircraft Admirals Club food at DFW terminal D was absolute worst food experience and I pay $600/year to eat this dried out junk

Flight was delayed because of a bird strike. They had another plane available within 45 minutes.

Mostly good. Flight was crowded but Airline personnel were very friendly & accommodating. It would be good to have savory snacks rather than just sweet Biscoff cookies.

It was a typical flight. We had a delay which seems to be the normality now. And we had no in flight service due to conditions.

Flight attendants on this flight were very attentive and friendly

After we landed we sat on the tarmac for 1.5 hours waiting to get to our gate. Ridiculous.

Food should be better quality. Video screens have poor resolution and the library of movies is poor. The other airlines are much better.

Moved me away from my family and refused to fix it.

I have always been pleased with their service. Would not change a thing

Seating and food was the worst we have experienced in 35 years of traveling for both personal and busines .

Economy seats felt more cramped than other flights we have taken.7 hr, painful sitting hours 6 and 7. Web site difficult to deal with. Originally put in for 1 special meal due to type 2. Meal was awful. Tried to change selection to standard for return flight, on app and website, unable to complete that action.

I was sleeping during dinner service, no one bothered to offer meal later, I remained hungry….until I got a morning sandwich!

Need to offer Better food from LAX to London Service from London to Delhi very delayed after take off.

Connection at Hethrow was horrible..We couldn't get out of the plane for an hour as they were buying people to the airport and there were not enough busses. We had 2 and half hf between flights so it was very tight. After departing plane we had to go thru security again. People with less time in between connections missed their flights

Poor all around experience. Sat at gate in Grand Rapids to Chicago for 2.5 hours. No food or water offered and no allowances to use restroom. Missed connecting flight to London and not offered any compensation including food or lodging. Not happy with AA, claims delay was weather related but no weather issues seen on radar. Take ownership for real reason behind delay which was actually the IT outage. Very disappointing and will not be recommending AA for domestic or international flights if this is the way that customers are treated.

Horrible… I was downgraded without notice, had to sit in economy and given my back injury was in pain most of the journey. I expect to be reimbursed for this inconvenience and after my return flight home, I never plan to fly with British Airways again.

Great crew and food and beverage. Seating tight but not the airline's fault. Will definitely fly BA in future!

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

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