$706 Find Cheap Flights from Oklahoma City to Portugal - Compare and Save

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Price, demand and travel trends for Oklahoma City to Portugal flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What are the cheapest fares from Oklahoma City to Portugal right now?

The cheapest fares from Oklahoma City to Portugal on KAYAK in the last week were to Porto (OPO) from $706 round-trip, and to Lisbon Humberto Delgado (LIS) from $721 round-trip.

What’s the cheapest month to fly from Oklahoma City to Portugal?

October is the cheapest time of year to fly, with average fares of $474. Prices are highest in December, when average flight costs increase to around $2,259.

Which airport in Portugal is the cheapest to fly to from Oklahoma City?

Based on KAYAK data from the past 12 months, the cheapest airports to fly into Portugal are:

• Lisbon Humberto Delgado (LIS) (avg. price $919)
• Porto (OPO) (avg. price $1,064)

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

Tuesday tends to be the cheapest day to fly from Oklahoma City to Portugal, while Sunday is the most expensive. Fares run about 70% higher that day, based on the past 12 months of KAYAK data.

What's the cheapest time of day to fly from Oklahoma City to Portugal?

Data from the past 12 months shows it's cheapest to fly to Portugal during the afternoon with average prices of $918. The morning is the most expensive time to fly, with average prices of $1,227.

Key details for Oklahoma City to Portugal flights

Low season

February

Cheapest flight

$341
Beat the crowds with an average 61% drop in travelers.
The most popular month to fly with an average 46% increase in travelers.
One-way flight from Oklahoma City to Lisbon

Your Oklahoma City to Portugal flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Oklahoma City to Portugal?

    Yes. Fares from Oklahoma City to Portugal are low right now. As a rule of thumb, a round-trip under $771 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from Oklahoma City to Portugal?

    Over the past 12 months, round-trip fares from Oklahoma City to Portugal have ranged from $771 to $1,291.

  • Which cabin classes are available on flights from Oklahoma City to Portugal?

    On flights from Oklahoma City to Portugal you can book Economy Class, Premium Economy Class, Business Class or First Class.

  • What are some popular landmarks in Portugal?

    KAYAK travelers' favorite landmarks in Portugal include:

    • Chiado
    • Ribeira Square
    • Avenida dos Aliados
    • Commerce Square

Your guide to booking Oklahoma City to Portugal flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your travel dates are flexible, book your trip for October when flights are typically cheapest and avoid December when prices are at their highest.
  • Flying on Tuesday is usually the cheapest. Flights on Sunday cost about 70% more on average, so being flexible with your travel dates could help you save.
  • If you're looking to save, Lisbon Humberto Delgado (LIS) is the cheapest airport to fly into from Oklahoma City. If you have onward travel, don't forget to factor in the cost of your journey by train, bus or domestic flight.
  • Start your trip in Lisbon, which is the most popular destination in Portugal. From there, it's easy to continue on to other popular destinations such as Porto, Albufeira and Funchal.

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.
7.8
DeltaOverall score based on 8697 reviews
7.8Comfort
8.1Boarding
7.2Food
7.8Entertainment
8.5Crew
Airline reviews

Great overall experience and use of the Delta One lounge was amazing!

10.0 ExcellentAvery, Nov 2026
Read more Delta reviews

Great overall experience and use of the Delta One lounge was amazing!

I used by Skymiles to upgrade to First so that I could comfortably work using my laptop. But WiFi was intermittent and unavailable for long periods. I feel like I wasted 70,000 miles :(

Great as one can be for a one connection 6 hour flight

Packed flight and not sure why dinner service would start at midnight while passengers we’re trying to sleep

The gate attendant was not clear w message on flight delays.

Chairs don’t recline and the ones that do recline, barely do recline. It was most uncomfortable flight i ever been on.

Good but not on par when compared with foreign flag carriers.

Good service but not on par when compared to foreign flag carriers.

Seats in Delta Main are unbelievably close to the seat in front of. Hard to get a backpack under the seat.

Overall Delta was amazing from automatically booking us on the next flight once we missed our connection due to a delay to the constant communication throughout the entire process. We will continue to fly Delta going forward more and pay a little more if needed.

Set on the plane for two hours before pushing off the gate due to the power source issue being fixed which was known before letting people board the plane. On top of that it was very hot as AC was not working properly. Terrible experience and limited communication provided by the crew on the status of the issue. They should let people deplane while issue is addressed instead of frying them and glued to the seats.

I am United’s newest fan. The planes are clean, the staff is so friendly and snacks are more than just old pretzel crumbles. The captain came and said hello! Truly amazing experience

1 person checking us as we boarded, left gate on time, 12.30 we are told we were held for 15 mins as other flights were waiting to take off, captain due to rain … they were having a longer gap between take offs , 3pm we took off , they went land route via New Orleans in to Florida landed at 5.45pm offered coffee and a biscuit

Service was slow Flight was very loud at back of plane

Awful. Delay after delay. And then again on the tarmac.

Improve the food offerings and cabin seating. My wife would prefer to fly another airline, even with a connection for a more comfortable trip. A 737-8 should not be scheduled for a 6 hour segment, which turned into 7.5 hours due to the origin ground delay.

OK, I don’t expect much from coach class. Everything basically is pretty lousy. But at least I expect my bloody luggage to get from A to B. Tap Airlines lost my luggage and it has been more than 24 hours in Lisbon and they still have not located my luggage. On top of that, they are incredibly unhelpful. They feel actually dismissive. This lousy customer service.

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.

Late FA meant slow boarding. WiFi did not work. I’m a medium plus sized passenger. The seatbelt was for the first time ever barely fitting. And we delayed on the tarmac 40 min

Some of these FA’s need attitude check. Snarky bitches

It was not British Air, we were put onto Air Portugal for our London to Lisbon leg.

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 on flight entertainment system touch screen system and the USB charger did not work on multiple seats on least 4 seats an in different rows. The attendant tried to reset the system but was un successful. I couldn't change my phone to get my ticket for my next flight. This was an international flight I changed seats and the problem was the same. the flight attendant offered his power bank

Business class was nothing more than Economy with middle seat empty. Uncomfortable seat and leg room. A mom behind me had a 18 month/2 yr old on her lap, who had his feet on my back all the time- while middle seat remained empty. Pretty much not worth the fare. Very disappointed.

Once again I purchase a business class ticket and the seat is exactly the same as cattle class, the only difference being is that BA install a janky table over the middle seat so there is somewhere to place your complimentary drink, the tray table is just big enough for the small tray, so if you are not concerned about getting fed and watered on the plane or getting access to the BA lounge I would save your money and fly cattle, PS the cabin crew were exceptional in every way, shame about the equipment

Access to movies was nice, food not bad, and landing was smooth. Cramming us in like sardines is not fun. A little more space to bend down to get a bag or not touch my neighbors arm because we’re so close would be better for a 9 hour flight. Whomever designed the seating and you, who bought these planes, clearly are NOT interested in customers’ comfort. So stop pretending you do. Also, if you want traveler’s to check their bags so there is space to store carry one, don’t charge so much to check baggage. Seriously?!

When bussing people to/from the gate, don't pack everyone in like a can of sardines and don't send the bus on its way if the plane isn't ready. Waited for about 40 minutes packed in this bus...both ways!

It was good… always SO many people… I realize that’s how they make money but wow!

The flight was delayed for more than 5 hours. It was a headache trying to wait for the plane after it got delayed over 4 times.

A Perfect 2.5 hr flight. No amenities, but we did not expect any.

More options for your flight from Oklahoma City to Portugal

Complete your trip to Portugal with a hotel stay or car rental