$496 Find Cheap Flights from Redmond 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 Redmond to Portugal departing on 2/5. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Portugal

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Book Cheap Redmond 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 Redmond 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 Redmond to Portugal

Thu, Apr 23 - Thu, May 7
United Airlines Logo
1:55 pm - 10:45 pm
RDM
-
LIS
48h 50m
2 stops
United Airlines Logo
11:25 am - 8:58 pm
LIS
-
RDM
41h 33m
2 stops
$496United Airlines
Thu, Apr 23 - Thu, May 7
United Airlines Logo
1:55 pm - 10:45 pm
RDM
-
LIS
24h 50m
2 stops
United Airlines Logo
11:25 am - 8:58 pm
LIS
-
RDM
41h 33m
2 stops
$497United Airlines
Thu, Apr 23 - Thu, May 7
United Airlines Logo
12:57 pm - 10:40 pm
RDM
-
LIS
25h 43m
2 stops
United Airlines Logo
12:20 pm - 12:38 pm
LIS
-
RDM
56h 18m
3 stops
$729United Airlines
Thu, Apr 2 - Sun, Apr 12
United Airlines Logo
12:57 pm - 9:55 pm
RDM
-
LIS
48h 58m
2 stops
United Airlines Logo
6:15 am - 12:56 pm
LIS
-
RDM
38h 41m
2 stops
$810United Airlines
Thu, Apr 23 - Thu, May 7
Multiple Airlines Logo
1:31 pm - 11:45 am
RDM
-
LIS
38h 14m
1 stop
Multiple Airlines Logo
8:05 am - 12:59 pm
LIS
-
RDM
36h 54m
2 stops
$1,196Multiple Airlines
Thu, Apr 2 - Sun, Apr 12
United Airlines Logo
1:55 pm - 11:05 am
RDM
-
LIS
61h 10m
3 stops
United Airlines Logo
6:15 am - 12:56 pm
LIS
-
RDM
38h 41m
2 stops
$1,290United Airlines
Thu, Apr 2 - Sun, Apr 12
Multiple Airlines Logo
5:35 pm - 11:45 am
RDM
-
LIS
34h 10m
1 stop
Multiple Airlines Logo
10:00 pm - 11:21 pm
LIS
-
RDM
33h 21m
2 stops
$1,307Multiple Airlines
Fri, Mar 20 - Sun, Mar 29
United Airlines Logo
1:54 pm - 10:15 am
RDM
-
LIS
37h 21m
3 stops
United Airlines Logo
7:25 am - 10:59 pm
LIS
-
RDM
47h 34m
2 stops
$1,339United Airlines
Fri, Mar 20 - Sun, Mar 29
United Airlines Logo
1:13 pm - 10:15 am
RDM
-
LIS
38h 02m
2 stops
United Airlines Logo
7:25 am - 10:59 pm
LIS
-
RDM
47h 34m
2 stops
$1,363United Airlines
Fri, Mar 20 - Sun, Mar 29
United Airlines Logo
5:00 am - 8:10 am
RDM
-
LIS
20h 10m
2 stops
United Airlines Logo
7:25 am - 10:59 pm
LIS
-
RDM
47h 34m
2 stops
$1,449United Airlines
Booking Insights

KAYAK's insights & trends for Redmond to Portugal flights

Get data-powered insights and trends into flights from Redmond 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 Redmond to Portugal?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Redmond 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 Redmond to Portugal is April, when tickets cost $769 (return) on average. On the other hand, the most expensive months are June and September, when the average cost of round-trip tickets is $1,652 and $1,083 respectively.

Good to know

Low seasonJanuary
Cheapest flight$329
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly and prices are also 13% lower on average.
Flight from Redmond to Lisbon

FAQs - booking Portugal flights

  • How does KAYAK find such low prices on flights from Redmond 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 Redmond to Portugal.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Redmond 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 Redmond 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 Redmond 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 Redmond 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 Redmond 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 airlines flying from Redmond to Portugal

 
Need help choosing which airline to fly with from Redmond 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.
7.9
DeltaOverall score based on 8127 reviews
7.2Food
8.1Boarding
7.9Comfort
7.8Entertainment
8.5Crew
Airline reviews

Timing, quality of service, promptness and courtesy of the staff

10.0 ExcellentAjai, Jan 2026
DFW - ATL
Read more Delta reviews

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The flight was comfortable and uneventful, which is what I desire

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Outdated equipment in disrepair, wifi inoperable. Broken seats, taped air vents, generally poor condition, the 717 showed its age and lack of upkeep.

My flight out of Baton Rouge to Atlanta was delayed by a half hour. This got us into Atlanta airport 30 minutes late. I ran through the airport to get to my connecting flight. As I approached the boarding gate, I saw the boarding door was still open and a passenger was being checked in. But when I got to the gate, the boarding agent told me they had already given away my seat and there were no empty seats on that flight. So I had to take a later flight. That has never happened to me before. Very frustrating.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

The food was terrible this time. Otherwise pleasant, quiet, on-time.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

I wish there were outlets to charge my iPhone. The crew was great; we had a female pilot who was great with explaining what was happening and delays,

Everything you need to know for your flight from Redmond to Portugal

Information on your arrival and departure airports