SLC - OPO

$485 Find Cheap Flights from Salt Lake City to Porto

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Salt Lake City to Porto departing on 12/28. 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 Porto

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Salt Lake City to Porto, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Salt Lake City to Porto, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% 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.

Everything you should know

Cheapest round-trip
$731
Overall average: $818
KLM
Wed 2/18Mon 2/23
SLC - OPO • 2 stops
Cheapest one-way
$485
Multiple Airlines
Sun 12/28
SLC - OPO • 3 stops
Top airlines
KLM
Cheapest • from $731 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
January
Cheapest • 29% price drop
October
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Porto!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Salt Lake City to Porto (SLC-OPO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Salt Lake City to Porto 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 Salt Lake City to Porto

Wed, Feb 18 - Mon, Feb 23
KLM Logo
11:13 am - 10:30 amSLC-OPO
16h 17m2 stops
KLM Logo
6:30 am - 12:10 pmOPO-SLC
36h 40m1 stop
$731KLM
Find Deal
Wed, Feb 18 - Mon, Feb 23
KLM Logo
4:00 pm - 3:25 pmSLC-OPO
16h 25m1 stop
KLM Logo
11:15 am - 12:10 pmOPO-SLC
31h 55m1 stop
$732KLM
Find Deal
Thu, Feb 19 - Sun, Feb 22
KLM Logo
11:13 am - 10:30 amSLC-OPO
16h 17m2 stops
KLM Logo
4:10 pm - 12:10 pmOPO-SLC
27h 00m1 stop
$737KLM
Find Deal
Wed, Feb 18 - Mon, Feb 23
Delta Logo
9:25 am - 10:30 amSLC-OPO
18h 05m2 stops
Delta Logo
6:30 am - 9:00 pmOPO-SLC
21h 30m2 stops
$741Delta
Find Deal
Thu, Feb 19 - Mon, Feb 23
Delta Logo
4:00 pm - 10:25 pmSLC-OPO
23h 25m1 stop
Delta Logo
6:30 am - 9:00 pmOPO-SLC
21h 30m2 stops
$742Delta
Find Deal
Thu, Feb 19 - Sun, Feb 22
SWISS Logo
12:43 pm - 6:30 pmSLC-OPO
22h 47m2 stops
SWISS Logo
7:25 pm - 10:39 pmOPO-SLC
34h 14m2 stops
$745SWISS
Find Deal
Wed, Feb 18 - Mon, Feb 23
United Airlines Logo
7:30 am - 3:25 pmSLC-OPO
24h 55m3 stops
United Airlines Logo
6:00 am - 7:47 pmOPO-SLC
20h 47m2 stops
$753United Airlines
Find Deal
Sat, Mar 14 - Sat, Mar 21
United Airlines Logo
11:25 pm - 9:30 amSLC-OPO
28h 05m2 stops
United Airlines Logo
12:30 pm - 11:22 pmOPO-SLC
40h 52m2 stops
$759United Airlines
Find Deal
Tue, Feb 17 - Sun, Feb 22
United Airlines Logo
12:46 am - 11:40 amSLC-OPO
27h 54m3 stops
United Airlines Logo
12:30 pm - 7:47 pmOPO-SLC
38h 17m2 stops
$772United Airlines
Find Deal
Tue, Feb 17 - Sun, Feb 22
United Airlines Logo
12:46 am - 11:40 amSLC-OPO
27h 54m3 stops
United Airlines Logo
12:30 pm - 2:46 pmOPO-SLC
57h 16m3 stops
$787United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Salt Lake City to Porto flights

Get data-powered insights and trends into flights from Salt Lake City to Porto to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Salt Lake City to Porto?

The average price of all round-trip flights from Salt Lake City to Porto clicked on KAYAK for each day over the last 12 months.

For Salt Lake City to Porto, Monday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Porto back to Salt Lake City, the best deals are generally found on Wednesday, with Monday being the most expensive.

What is the cheapest month to fly from Salt Lake City to Porto?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Salt Lake City to Porto, 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 Salt Lake City to Porto is January, where tickets cost $697 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is $1,931 and $1,191 respectively.

Good to know

Low seasonFebruary
Cheapest flight$485
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly and prices are also 28% lower on average.
Flight from Salt Lake City to Porto

When to book flights from Salt Lake City to Porto

Are your dates flexible? Find out the best times to travel from Salt Lake City to Porto based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Salt Lake City to Porto

  • What is the cheapest flight from Salt Lake City to Porto?

    In the last 3 days, the lowest price for a flight from Salt Lake City to Porto was $485 for a one-way ticket and $731 for a round-trip.

  • Do I need a passport to fly between Salt Lake City and Porto?

    Yes

  • Which aircraft models fly most regularly from Salt Lake City to Porto?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Salt Lake City to Porto?

    Star Alliance, and SkyTeam are the airline alliances operating flights between Salt Lake City and Porto, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Salt Lake City to Porto, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from Salt Lake City to Porto are Delta and KLM. With an average price for the route of $1,101 and an overall rating of 7.9, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $1,128 and an overall rating of 7.7.

  • How does KAYAK find such low prices on flights from Salt Lake City to Porto?

    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 Salt Lake City to Porto.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Salt Lake City to Porto?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Salt Lake City 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 Salt Lake City to Porto?

    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 to Porto with an airline and back to Salt Lake City with another airline. Booking your flights between Salt Lake City and OPO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Salt Lake City to Porto?

    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 to Porto from Salt Lake City up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Salt Lake City to Porto

 
See real verified KAYAK customer reviews for airlines flying from Salt Lake City to Porto. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Salt Lake City to Porto? 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 8007 reviews
8.5Crew
7.9Entertainment
7.9Comfort
7.3Food
8.1Boarding
Airline reviews

Plenty of leg room, temperature was great and staff was excellent. Would do it more often.

10.0 ExcellentJacky, Nov 2025JFK - LHR
Read more Delta reviews

Plenty of leg room, temperature was great and staff was excellent. Would do it more often.

The ticket agents in West Palm Beach on Friday afternoon Nov. 7th were incredible in getting us on an earlier plane to Atlanta during the government shutdown. Had the taken our original flight we would have missed our connection. She did this on her own, We didn't even have to ask, and she did it all with a smile and showing genuine concern that we would be taken care of. We are very grateful and thankful. We fly often, and now we will be sure to fly Delta.

Flight delayed then cancelled. Misplaced luggage. Still do not have. Rented car 1100 mile drive. I had to buy some overnight Hotels clothes toiletries gas food at my expense. Still not home. Not sure where luggage is. Over 4 hours on hold to Felta

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

The immigration hall in Amsterdam was understaffed, so passport checking was slower than it should be for a major airport. They need to get the automatic readers up and running for non EU passport holders. Waiting in line after a long flight feels a bit abusive.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

The baggage drop-off in Stuttgart is bad: after online check-in you cannot use the automated baggage drop off as indicated on the website. You can use the terminals but have to cue to 1 of three open and slowly working counters to drop the bags. took about 45 minutes wait time.

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

Klm start boarding while somw air issue in the plan

The service was great. However the lounge only gets passing grade

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

Older aircraft, no meal, only food was for purchase. Not impressed United.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Always wish for more healthy, gluten free options. We have to bring our own.

Having a long layover, I was very appreciative of the ability to stand by for an earlier flight. Other airlines like Delta have refused this to me in the past, just to be mean (because my ticket class wasn't high enough). United went out of their way to help me get to my destination early, which I really appreciated given that it was the third leg of a 24+ hour journey for me.

Other than a way way too cold cabinets for the entire flight, all was great

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

Plane boarded early a quickly, was mostly full. We left close to on time. And landed early.

My experience on this United Airlines flight was highly uncomfortable, primarily due to two issues: Cabin Temperature: The temperature on the Boeing 737 MAX 8 was unacceptably high, feeling consistently around 80 degrees throughout the flight. This made sleeping impossible and significantly detracted from the experience. Seating Arrangement: Being stuck in a middle seat for a six-and-a-half-hour overnight flight compounded the discomfort. Moving forward, I will always purchase a seat assignment to avoid this situation.

Premium Plus is a really good idea for longer flights

Everything you need to know for your flight from Salt Lake City to Porto

Information on your arrival and departure airports