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$496+ Cheap flights from Redmond (RDM) to Lisbon (LIS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
RDM — LIS
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Redmond to Lisbon

Cheapest flights from Redmond to Lisbon
Explore the most affordable flight options available from Redmond to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/201:18 pmRDM - LIS
2 stops36h 57mUnited Airlines
Sat 12/2712:20 pmLIS - RDM
2 stops56h 02mUnited Airlines
Deal found 12/10$1,983
This Kiwi.com deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/206:53 amRDM - LIS
2 stops43h 17mMultiple Airlines
Sat 12/2710:30 amLIS - RDM
1 stop20h 59mMultiple Airlines
Deal found 12/10$3,124

Find flight deals from Redmond to Lisbon

Discover tips and strategies to find the most affordable flight options for your journey from Redmond (RDM) to Lisbon (LIS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$496
(United Airlines)

Popular in

June

Cheapest in

February

Average price

$951
Provider with most accurate pricing for Bend/Redmond-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for Bend/Redmond-Lisbon Humberto Delgado flights.
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From Bend/Redmond to Lisbon Humberto Delgado
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($176 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($62 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Redmond to Lisbon that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
Use the filters below to find and compare flights from Redmond to Lisbon that are best for you.

Fly from

Redmond

Fly to

Lisbon

Route

Depart

Return

Price

RedmondLisbon

RDM - LIS

RDMLIS

Bend/Redmond

Fri 1/9

6:34 am-9:20 am

2 stops18h 46m

Lisbon Humberto Delgado

Fri 1/16

11:20 am-6:46 pm

2 stops39h 26m

$496

RedmondLisbon

RDM - LIS

RDMLIS

Bend/Redmond

Fri 1/23

5:00 am-8:10 am

2 stops19h 10m

Lisbon Humberto Delgado

Tue 1/27

5:00 am-1:02 pm

2 stops40h 02m

$498

RedmondLisbon

RDM - LIS

RDMLIS

Bend/Redmond

Fri 3/13

5:45 am-3:10 pm

2 stops26h 25m

Lisbon Humberto Delgado

Mon 3/23

5:00 am-10:51 pm

2 stops24h 51m

$683

RedmondLisbon

RDM - LIS

RDMLIS

Bend/Redmond

Fri 2/13

1:54 pm-8:45 am

2 stops34h 51m

Lisbon Humberto Delgado

Fri 2/20

10:55 am-10:45 pm

2 stops43h 50m

$686

RedmondLisbon

RDM - LIS

RDMLIS

Bend/Redmond

Fri 3/13

1:13 pm-8:55 am

2 stops36h 42m

Lisbon Humberto Delgado

Mon 3/23

6:10 am-12:11 pm

2 stops37h 01m

$777

RedmondLisbon

RDM - LIS

RDMLIS

Bend/Redmond

Fri 3/20

1:13 pm-8:55 am

2 stops36h 42m

Lisbon Humberto Delgado

Sun 3/29

11:25 am-9:14 pm

2 stops41h 49m

$1,080

RedmondLisbon

RDM - LIS

RDMLIS

Bend/Redmond

Fri 1/9

7:45 am-2:15 pm

1 stop22h 30m

Lisbon Humberto Delgado

Fri 1/16

9:00 am-9:15 pm

2 stops20h 15m

$1,187

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Compare providers for flights from Redmond to Lisbon

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Redmond to Lisbon in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Redmond-Lisbon flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Redmond-Lisbon flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Redmond-Lisbon flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Redmond-Lisbon flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Redmond-Lisbon flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Redmond to Lisbon

Have a flexible travel schedule? Discover the best time to fly to Lisbon from Redmond with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Redmond to Lisbon

What is the cheapest month to book a flight from Redmond to Lisbon?

Currently, February is the cheapest month in which you can book a flight from Redmond to Lisbon (average of $567). Flying from Redmond to Lisbon in June is currently the most expensive (average of $1,306). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from RDM to LIS?

Find hourly flight availability from Redmond to Lisbon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

When flying from Redmond to Lisbon, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 15% versus a flight at noon.

Reviews of airlines servicing Lisbon

Get insights into the airlines that provide service to Lisbon. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Lisbon. Reviews last updated December 12, 2025.
Read reviews from past customers who have flown Delta and United Airlines from Redmond to Lisbon. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,007 reviews

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,007 reviews
Delta
7.9
Good
8,007 reviews

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,095 reviews
Delta
7.9
Good
8,007 reviews

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Redmond to Lisbon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Redmond to Lisbon?

    United Airlines can get you from Redmond to Lisbon in just under 18h 46m. Your travel time can differ by up to . Airlines will cover a distance of 5305 mi.

  • What are the cheapest airlines flying from Redmond to Lisbon round-trip?

    United Airlines, at $654, was found to be the cheapest airline from Redmond to Lisbon. An alternate airline flying to your destination would be Delta. These flights start at 33% lower than the current average price 3 months from now.

  • Can I find deals for flights from Redmond to Lisbon that include hotel bookings?

    Yes. In addition to deals on Redmond to Lisbon flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Redmond to Lisbon?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Redmond to Lisbon.

  • Can I find deals for business class flights from Redmond to Lisbon?

    Yes. Cheapflights offers flight deals from Redmond to Lisbon by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Redmond to Lisbon?

    Currently, February is the cheapest month in which you can book a flight from Redmond to Lisbon (average of $567). Flying from Redmond to Lisbon in June is currently the most expensive (average of $1,306). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Fátima
Oeiras
Ericeira
Costa da Caparica
Torres Vedras
Beja
Nazaré
Sesimbra
Colares

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Alternative routes for Redmond to Lisbon

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Lisbon flights
Portland to Porto flights
Boise to Lisbon flights
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Eugene to Porto flights

Top 2 airlines flying from Redmond to Lisbon

Discover the top 2 airlines that operate flights from Redmond to Lisbon. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$654Average$833FlexibilityNo cancel feeOn-time69%
DeltaCheapest$742Average$1,206FlexibilityNo cancel feeOn-timeN/A

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