$349 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 4/23. 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

lun., abr. 6 - lun., abr. 13
United Airlines Logo
1:55 pm - 10:45 pm
RDM
-
LIS
48h 50m
2 stops
United Airlines Logo
11:25 am - 12:56 pm
LIS
-
RDM
33h 31m
2 stops
$525United Airlines
mar., abr. 7 - jue., abr. 16
Air Europa Logo
5:15 am - 10:45 am
RDM
-
LIS
21h 30m
2 stops
Air Europa Logo
5:00 am - 5:01 pm
LIS
-
RDM
20h 01m
2 stops
$552Air Europa
mar., abr. 7 - jue., abr. 16
United Airlines Logo
1:55 pm - 9:20 am
RDM
-
LIS
35h 25m
3 stops
United Airlines Logo
5:05 am - 11:55 am
LIS
-
RDM
38h 50m
2 stops
$586United Airlines
mié., mar. 4 - dom., mar. 8
United Airlines Logo
7:50 am - 1:20 pm
RDM
-
LIS
21h 30m
2 stops
United Airlines Logo
12:15 pm - 10:45 pm
LIS
-
RDM
41h 30m
2 stops
$682United Airlines
mié., mar. 4 - dom., mar. 8
United Airlines Logo
1:54 pm - 11:30 pm
RDM
-
LIS
25h 36m
2 stops
United Airlines Logo
11:55 am - 12:58 pm
LIS
-
RDM
32h 03m
2 stops
$693United Airlines
jue., abr. 9 - jue., abr. 16
Multiple Airlines Logo
12:48 pm - 6:10 pm
RDM
-
LIS
21h 22m
2 stops
Multiple Airlines Logo
11:05 am - 11:58 pm
LIS
-
RDM
20h 53m
2 stops
$704Multiple Airlines
mié., mar. 4 - dom., mar. 8
United Airlines Logo
5:10 am - 10:15 am
RDM
-
LIS
21h 05m
2 stops
United Airlines Logo
5:00 am - 4:54 pm
LIS
-
RDM
43h 54m
2 stops
$766United Airlines
mié., mar. 4 - dom., mar. 8
United Airlines Logo
7:50 am - 1:20 pm
RDM
-
LIS
21h 30m
2 stops
United Airlines Logo
5:00 am - 4:54 pm
LIS
-
RDM
43h 54m
2 stops
$769United Airlines
lun., abr. 6 - lun., abr. 13
United Airlines Logo
1:55 pm - 9:20 am
RDM
-
LIS
35h 25m
3 stops
United Airlines Logo
11:25 am - 9:16 pm
LIS
-
RDM
41h 51m
2 stops
$816United Airlines
dom., mar. 15 - vie., mar. 20
Delta Logo
6:19 am - 3:10 pm
RDM
-
LIS
25h 51m
2 stops
Delta Logo
5:30 am - 11:07 pm
LIS
-
RDM
24h 37m
2 stops
$927Delta
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 $1,083 respectively.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$349
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 9342 reviews
8.1Crew
7.1Entertainment
7.7Boarding
7.3Comfort
6.6Food
Airline reviews

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

10.0 ExcellentAnonymous, Feb 2026
DEN - RSW
Read more United Airlines reviews

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Flight on time. Excellent service in Premium Economy. Great food served and cleaned up promptly. Unfortunately the climate control was malfunctioning and it was very cold and felt a bit like camping. Cold helps with sleep though so not complaining too much. Slept well. It asks to rate "entertainment". I do not like any IFE, don't shove a big screen in my face—I have my own phone if I want it. So this will always get low ratings.

We had turbulence ever 1/2 hr or so and the captains announcements were SOOOO LOUD

Everything was great except for the boarding process. Everyone is lining up all at the same time and it’s hard to tell between the groups as they are way too large.

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

Overall we had a good experience during our flight from San Francisco to Houston.

Airport terminal was outdated, flight was on a small jet with no wifi

We were delayed for about an hour from taking off due to traffic control procedures at the destination airport. But once in the air, the flight went well. The crew members were great and provided cabin service despite moderate turbulence during much of the flight.

it was a very short flight so my expectations were low.

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

Information on your arrival and departure airports

Redmond (RDM)