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Find cheap KLM flights to Porto

CMH — OPO
26 Aug — 2 Sep1
1 adult
1 adult, Economy, 0 bags

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Cheapest KLM flights from United Kingdom to Porto
Explore the most affordable KLM flight options available from United Kingdom to Porto. Find the lowest fares with prices last updated on 27 July 2026.

Thu 27/805:55
BHX
-
OPO
1 stop16h 20m
KLM
Wed 2/919:10
OPO
-
BHX
1 stop17h 30m
KLM
Deal found 26/7£156
Fri 28/806:30
LHR
-
OPO
1 stop9h 00m
KLM
Wed 2/919:10
OPO
-
LHR
1 stop12h 30m
KLM
Deal found 25/7£158
Thu 27/817:10
LHR
-
OPO
1 stop5h 05m
KLM
Wed 2/919:10
OPO
-
LHR
1 stop12h 30m
KLM
Deal found 23/7£161

Flights to Porto with KLM at a glance

Find detailed information about KLM flights from United Kingdom to Porto. Explore the options provided by KLM to plan your journey from United Kingdom to Porto. Data last updated 27 July 2026.

Return from

£149

One-way from

£98
KLM
  • KLM
  • 5/9-9/9
  • 2 total stops
  • 27h 35m total
  • United Kingdom to Porto
Search Deals
KLM
  • KLM
  • 14/9
  • 1 total stop
  • 5h 05m total
  • United Kingdom to Porto
Search Deals

Cheapflights Insights

Find cheap KLM flights to Porto

How long is the flight to Porto with KLM?

On average, KLM flights from the United Kingdom to Porto take 2 hours 32 minutes. Flights to Porto from other popular cities in the United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

FAQs about flights to Porto with KLM

  • Which airport do KLM flights arrive at when travelling to Porto?

    KLM flights on this route tend to land at Porto Airport.

  • Is KLM the cheapest airline for a flight to Porto?

    Flight prices will depend on factors like date, time, and cabin class, so it is worth comparing flights before booking. Based on Cheapflights data, the cheapest average return price for flights to Porto tends to be with Ryanair.

  • Are there alternative airlines other than KLM that fly to Porto?

    Ryanair, easyJet and TAP AIR PORTUGAL all fly to Porto and offer an alternative to KLM.

  • How much is a KLM flight to Porto?

    The average price for a return flight is £332.

See more FAQs

Reviews of KLM

See what Cheapflights users have to say about their KLM experience.
KLM
7.8
Good
1,550 reviews
Check prices
Overview

Boarding

7.8

Food

7.3

Comfort

7.7

Entertainment

7.2

Crew

8.4

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