$560 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 6/18. 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, 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$614
Faro
Faro2 stops$847
Lisbon
Lisbon2 stops$614
Faro
Faro2 stops$847

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, Apr 28 - Tue, May 5
United Airlines Logo
1:44 pm - 1:40 pm
OKC
-
LIS
17h 56m
2 stops
United Airlines Logo
11:25 am - 8:39 pm
LIS
-
OKC
39h 14m
2 stops
$614United Airlines
Sat, Apr 25 - Tue, May 5
United Airlines Logo
1:55 pm - 1:40 pm
OKC
-
LIS
17h 45m
2 stops
United Airlines Logo
1:00 pm - 8:39 pm
LIS
-
OKC
37h 39m
2 stops
$619United Airlines
Wed, Apr 15 - Wed, Apr 22
Lufthansa Logo
4:38 pm - 10:15 pm
OKC
-
LIS
23h 37m
2 stops
Lufthansa Logo
12:35 pm - 7:01 pm
LIS
-
OKC
36h 26m
2 stops
$691Lufthansa
Thu, Apr 30 - Thu, May 7
United Airlines Logo
12:53 pm - 1:40 pm
OKC
-
LIS
18h 47m
2 stops
United Airlines Logo
1:00 pm - 8:15 pm
LIS
-
OKC
37h 15m
2 stops
$754United Airlines
Thu, Apr 16 - Wed, Apr 29
Iberia Logo
6:55 pm - 6:25 pm
OKC
-
LIS
17h 30m
2 stops
Iberia Logo
12:30 pm - 10:58 pm
LIS
-
OKC
16h 28m
2 stops
$830Iberia
Fri, Apr 17 - Tue, Apr 21
United Airlines Logo
7:05 am - 2:45 pm
OKC
-
FAO
25h 40m
2 stops
United Airlines Logo
3:25 pm - 7:42 pm
FAO
-
OKC
34h 17m
2 stops
$847United Airlines
Thu, Apr 30 - Thu, May 7
British Airways Logo
1:41 pm - 4:05 pm
OKC
-
FAO
20h 24m
2 stops
British Airways Logo
7:55 pm - 6:55 pm
FAO
-
OKC
29h 00m
2 stops
$888British Airways
Mon, Jun 1 - Wed, Sep 30
Iberia Logo
7:03 pm - 11:25 pm
OKC
-
LIS
22h 22m
2 stops
Iberia Logo
6:35 am - 11:29 pm
LIS
-
OKC
22h 54m
2 stops
$933Iberia
Wed, Sep 16 - Tue, Sep 29
Air Canada Logo
12:35 pm - 11:00 am
OKC
-
LIS
16h 25m
2 stops
Air Canada Logo
1:00 pm - 4:47 pm
LIS
-
OKC
33h 47m
2 stops
$955Air Canada
Fri, Apr 17 - Tue, Apr 21
British Airways Logo
6:55 pm - 7:05 pm
OKC
-
FAO
18h 10m
2 stops
British Airways Logo
11:30 am - 11:55 pm
FAO
-
OKC
42h 25m
2 stops
$993British Airways
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 March, when tickets cost $451 (return) on average. On the other hand, the most expensive months are May and April, when the average cost of round-trip tickets is $1,267 and $1,155 respectively.

Good to know

Low seasonMarch
Cheapest flight$560
Best time to beat the crowds with an average 46% drop in price.
Most popular time to fly with an average 23% 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.

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 9453 reviews
7.7Boarding
7.3Comfort
8.1Crew
7.1Entertainment
6.6Food
Airline reviews

Experience was great - no complaints. Took off on time, landed early. Got to the gate relatively quickly - took a little bit of extra time to deplane but nothing excessive.

10.0 ExcellentLaura, Mar 2026
MCO - EWR
Read more United Airlines reviews

Experience was great - no complaints. Took off on time, landed early. Got to the gate relatively quickly - took a little bit of extra time to deplane but nothing excessive.

Business class seats felt very cramped compared to other airlines.

Economy plus was so cramped I could not use my laptop. It was beyond bad.

OK, we were delayed and had to de plane and reboard.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.

Both my flight where delayed Had 25min to make it to my transfer flight

Everything was on time and service on the flight was great!

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

The 777’s economy seat’s legroom was more tolerable than expected. I appreciate the reclining mechanism which slides the seat forward to minimize cannibalizing the space behind. The food was terrible: very salty.

Mostly good. The WiFi wasn’t working so that was not great.

I rated the experience "mediocre" because of the 2 hour delay in take off. This is the 4th flight from DFW on AA where there was a delay and in one of the instances (after 13 delays), the flight was cancelled. I understand weather but for the March 18th flight, there was no weather issue in Dallas or Detroit. I called Concierge Key and they were wonderful, booking me on a later flight in case my flight was cancelled. I have flown with American for many years and never has there been this consistent pattern of delays. Very disappointing.

They put me on an earlier and I got home sooner

Not good. One of my luggage is missing. And until now they can’t find it

Horrible experience upon landing. Probably more due to DCA utter incompetence than AA.

Jill was the flight attendant in first class she was fabulous!! Best flight attendant I have had in years.!! And I fly every other week. Other can learn from her!!

Really good. I accidentally left my duffel on the plane and the reps were so friendly in retrieving it.

My 9:50AM flight was delayed to 3:40PM "due to incoming aircraft delay". No aircraft is "delayed" that long. Found out once we did board (after several changes in times) that the aircraft had a maintenance issue and we had to wait for another aircraft. Just tell us that. The aircraft we did get was old and the seats need to be updated. I have been traveling for several weeks with AA and you should refresh your entertainment content as frequent flyers have gone through most of your new content. I have Celiac and a shellfish allergy and continue to have struggles with meals on business and first class flights. Please keep this in mind. Sorry - was a long travel day yesterday and a bit cranky this morning with my experience comments. Still an AA fan.

The business steward was absolutely amazing! Smiles and kindness! Wish all AA flights are like this one!

As a first class customer, there was no power the entire flight which limited my ability to work. I find this unacceptable. The first 11 rows on the left side of the plan were out. I was only offered the option to charge my phone which was not the issue because my laptop was out of power. I asked if there was anything that can be done for me, and the answer was, "no". I was not offered any type of compensation for this AA problem which caused me unnecessary stress due to inability to address business issues on an already challenging travel day. Flight attendants tried to reset the power once but that was the extent of their support. Very disappointing for the lack of expected services on a flight. Please contact me with customer focused response to this complaint.

WiFi wasn’t available to economy until the end of the flight.

Very good staff members with sincere passion and responsibility in their job.

We paid for Business Class seats, but system did not have us and they were not available.

Very please with the seating that the Kayak staff booked for us!

Worth every penny to upgrade to BC. Treated and felt more like First Class

I paid for a very expensive Business Class seat to and from Cairo Egypt from Charleston SC. There was partnership from states to London using American Airlines. That leg was amazing. The British Airlines leg was a joke. They used the standard no leg room 3 by 3 seats. A tray was put on the middle seat. The trip was 5 hours, from London to Cairo, thus my BC purchase. There was no screen proving tv/movie options, only a small device plug. The fold down tray and the bag of peanuts were typical of normal short run flying. The one toilet was located in the galley. We all got to know each other well. This was my first and last trip with British Airlines. I now understand why they would NEVER give me a seat chart so that I could make a selection.prior to departure. It honestly would not have made a difference, there were less than 50% of occupied seats. Apparently everyone got the memo but me. I have never felt so cheated as with that trip, got to so another going back to London, yeah. I will be sending a letter to customer service and asking for a refund. I will be photos comparing the two BC legs. OH, one more thing. The FC ticket holders got bulkhead and exit row seats. I know they had to be thrilled

Good service, food and comfort in World Traveller Plus. Entertainment was poor - no wifi on the way out and barely working on the way back. Not a great choice of entertainment on the seat back tv.

Late! Late and late! More than 1hr 30mn. This sucks when it is the last of a 4 flight journey. I missed my dinner! Which is not nice on Valentine’s Day!!! But better than the gate next to us, the poor Chinese people were rebooked to the next day flight. AA had to call security as it became very heated with the passengers! It was a mess at DFW that afternoon/evening. I wish they had some food for the people who travel as part of international journey. Indigo does it in India and it is fantastic.

They had us seating down for one hour just waiting on the plane

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

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

Information on your arrival and departure airports