$410 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 8/1. 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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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

Wed, Apr 29 - Wed, May 6
United Airlines Logo
12:57 pm - 10:45 pm
RDM
-
LIS
49h 48m
2 stops
United Airlines Logo
11:25 am - 8:58 pm
LIS
-
RDM
41h 33m
2 stops
$714United Airlines
Sun, Apr 26 - Sun, May 3
KLM Logo
11:35 am - 2:35 pm
RDM
-
LIS
19h 00m
2 stops
KLM Logo
5:00 am - 11:06 pm
LIS
-
RDM
26h 06m
2 stops
$725KLM
Mon, Apr 20 - Mon, Apr 27
Multiple Airlines Logo
11:35 am - 5:50 pm
RDM
-
LIS
22h 15m
2 stops
Multiple Airlines Logo
7:45 pm - 5:01 pm
LIS
-
RDM
29h 16m
2 stops
$785Multiple Airlines
Tue, Apr 28 - Tue, May 12
United Airlines Logo
5:00 am - 10:45 pm
RDM
-
LIS
33h 45m
2 stops
United Airlines Logo
11:25 am - 8:49 pm
LIS
-
RDM
41h 24m
2 stops
$794United Airlines
Fri, Apr 17 - Wed, Apr 29
KLM Logo
11:35 am - 6:45 pm
RDM
-
LIS
23h 10m
2 stops
KLM Logo
5:00 am - 11:06 pm
LIS
-
RDM
26h 06m
2 stops
$839KLM
Fri, Apr 17 - Wed, Apr 29
KLM Logo
12:33 pm - 6:45 pm
RDM
-
LIS
22h 12m
2 stops
KLM Logo
5:00 am - 5:01 pm
LIS
-
RDM
20h 01m
2 stops
$840KLM
Fri, Apr 17 - Wed, Apr 29
United Airlines Logo
1:55 pm - 10:30 am
RDM
-
LIS
60h 35m
3 stops
United Airlines Logo
5:05 am - 10:59 pm
LIS
-
RDM
25h 54m
2 stops
$851United Airlines
Tue, Aug 25 - Tue, Sep 8
United Airlines Logo
9:45 am - 9:20 am
RDM
-
LIS
39h 35m
2 stops
United Airlines Logo
11:25 am - 8:43 pm
LIS
-
RDM
41h 18m
2 stops
$929United Airlines
Fri, Apr 17 - Wed, Apr 29
United Airlines Logo
1:55 pm - 9:20 am
RDM
-
LIS
35h 25m
3 stops
United Airlines Logo
6:45 am - 10:59 pm
LIS
-
RDM
24h 14m
2 stops
$932United Airlines
Thu, May 14 - Thu, May 21
Delta Logo
12:15 pm - 5:50 pm
RDM
-
LIS
21h 35m
2 stops
Delta Logo
5:00 am - 6:40 pm
LIS
-
RDM
21h 40m
2 stops
$939Delta
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 February, when tickets cost $509 (return) on average. On the other hand, the most expensive months are June and September, when the average cost of round-trip tickets is $1,691 and $1,098 respectively.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$410
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly and prices are also 9% 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 airline 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.
7.4
United AirlinesOverall score based on 9533 reviews
7.3Comfort
6.6Food
7.1Entertainment
8.1Crew
7.7Boarding
Airline reviews

It was perfect! I've never flown with United before, but I definitely will in the future

10.0 ExcellentAnonymous, Apr 2026
SFO - LAS
Read more United Airlines reviews

It was perfect! I've never flown with United before, but I definitely will in the future

I had a cancelled flight because of technical issues going to my destination, and a delayed flight coming home. All told it wasn’t a total bust.

Just a bad day to fly. Flight was delayed from scheduled 6:50 pm departure to 8:50 pm. Combination of factors mostly related to weather at the destination airport (which is where the incoming flight originated) which delayed the inbound flight over an hour. Once on board, we taxied but had to hold again on the taxiway for 10 minutes or so. We did not get wheels up until after 9 pm. The flight was smooth but about 18 minutes from our destination, we had to hold for several minutes more due to weather at ORD. We finally landed at ORD about 11:08 pm (accounting for the time difference, that was about a 3 hour delay from our scheduled departure time). It felt like we were never going to get to our destination. But the flight crew and attendants were very good. The movie selection onboard was also very nice. Got to watch half of a movie just during our taxi from the gate at ATL due to the delay!

Fine. The issues I had were associated with luggage being delayed from Turkey to Tanzania

No meal service to the back of the plane as it started late or was too slow to get it out before it was time to land.

Terrible, if possible won't be flying again anytime soon!

Efficient boarding and early departure. Very smooth flight. Early arrival in ATL. Great flight.

We purchase first class seats for the first time for multiples of standard economy ticket. There was no access to the club lounge and no priority boarding. The meal and the service once on the plane were superior and the seat was nicer, but not worth the price difference. I will be happy to seat in economy and spend the difference on more travel.

The business class seat is exceptional. I wish the food is more palatable.

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

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

Information on your arrival and departure airports

Redmond (RDM)