What are the cheapest airlines flying from St. Louis to Reykjavik round-trip?

Currently priced at $566, Air Canada will fly you from St. Louis to Reykjavik and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Delta - these airlines can fly you to your destination from $595 and $636, respectively. Users have found that Air Canada is 41% cheaper than the other options available to this destination.

What is the cheapest day to fly from St. Louis to Reykjavik?

Travelers seeking maximum savings on their St. Louis to Reykjavik flight should consider departing on Tuesday mornings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Reykjavik ranges from 1.6 - 3.1 inches per month. January is typically the wettest month, when rainfall can reach 3.1 in. May is typically the driest time to visit Reykjavik when rainfall is around 1.6 in.

If weather is an important factor for your trip to Reykjavik, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 51.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

What are the most popular airlines that fly from St. Louis to Reykjavik?

When booking a flight from St. Louis to Reykjavik, you may want to consider flying on Air Canada, Delta or KLM as they are the most popular for this route.

What is the cheapest day to fly round-trip from St. Louis to Reykjavik?

Users have found that flying from St. Louis to Reykjavik on a Wednesday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

What is the cheapest month to fly from St. Louis to Reykjavik?

The best pricing can be found in the month of January. Prices to Reykjavik from St. Louis average $972. You can even find prices in January for less than $972, as users have found deals to Reykjavik from as low as $701. The month of March appears to be one of the more expensive times to travel to Reykjavik from St. Louis. Flying in the targeted month can save you up to 37%.

What is the cheapest time of day to fly from STL to REK?

When flying from St. Louis to Reykjavik, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 19% versus a flight in the afternoon.

What airport do you fly from for flights from St. Louis to Reykjavik?

If you book a flight to Reykjavik from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 0 flights from Lambert-St Louis to Reykjavik per day from 4 different airlines.

Can I find deals for flights from St. Louis to Reykjavik that include hotel bookings?

Yes. In addition to deals on St. Louis to Reykjavik flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from St. Louis to Reykjavik?

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

Can I find deals for business class flights from St. Louis to Reykjavik?

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

Find Cheap Flights from St. Louis to Reykjavik

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Cheap flight deals from St. Louis to Reykjavik

Popular in	March
Cheapest in	January
Average price	$781

Highest demand for flights based on searches. 7% potential increase in price ($76 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($36 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Best time to book a flight from St. Louis to Reykjavik

Have a flexible travel schedule? Discover the best time to fly to Reykjavik from St. Louis 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 St. Louis to Reykjavik

What is the cheapest month to book a flight from St. Louis to Reykjavik?

Currently, November is the cheapest month in which you can book a flight from St. Louis to Reykjavik (average of $328). Flying from St. Louis to Reykjavik in June is currently the most expensive (average of $656). 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.

Reviews of airlines servicing Reykjavik

Peruse reviews from past customers who have flown with Delta, KLM, and United Airlines from St. Louis to Reykjavik to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,954 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,954 reviews

Delta

8.0

Very good

7,954 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

KLM

7.8

Good

1,385 reviews

Delta

8.0

Very good

7,954 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,929 reviews

Delta

8.0

Very good

7,954 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Air Canada

7.1

Good

10,000 reviews

Delta

8.0

Very good

7,954 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What airport do you fly from for flights from St. Louis to Reykjavik?
If you book a flight to Reykjavik from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 0 flights from Lambert-St Louis to Reykjavik per day from 4 different airlines.
What are the cheapest airlines flying from St. Louis to Reykjavik round-trip?
Currently priced at $566, Air Canada will fly you from St. Louis to Reykjavik and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Delta - these airlines can fly you to your destination from $595 and $636, respectively. Users have found that Air Canada is 41% cheaper than the other options available to this destination.
Can I find deals for flights from St. Louis to Reykjavik that include hotel bookings?
Yes. In addition to deals on St. Louis to Reykjavik flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Reykjavik?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Reykjavik.
Can I find deals for business class flights from St. Louis to Reykjavik?
Yes. Cheapflights offers flight deals from St. Louis to Reykjavik 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 St. Louis to Reykjavik?
Currently, November is the cheapest month in which you can book a flight from St. Louis to Reykjavik (average of $328). Flying from St. Louis to Reykjavik in June is currently the most expensive (average of $656). 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.

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Top 4 airlines flying from St. Louis to Reykjavik

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$566	Average$672	FlexibilityNo cancel fee	On-time67%
United Airlines	Cheapest$595	Average$1,115	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$636	Average$1,112	FlexibilityNo cancel fee	On-timeN/A
KLM	Cheapest$828	Average$1,147	FlexibilityNo cancel fee	On-time75%

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Cheap flights from St. Louis (STL) to Reykjavik (REK)

Find cheap flights from St. Louis to Reykjavik with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

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Cheap flight deals from St. Louis to Reykjavik

Popular in

Cheapest in

Average price

Best time to book a flight from St. Louis to Reykjavik

Have a flexible travel schedule? Discover the best time to fly to Reykjavik from St. Louis with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Reykjavik

What is the cheapest month to book a flight from St. Louis to Reykjavik?

Reviews of airlines servicing Reykjavik

Peruse reviews from past customers who have flown with Delta, KLM, and United Airlines from St. Louis to Reykjavik to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What airport do you fly from for flights from St. Louis to Reykjavik?

What are the cheapest airlines flying from St. Louis to Reykjavik round-trip?

Can I find deals for flights from St. Louis to Reykjavik that include hotel bookings?

How can I find direct flights from St. Louis to Reykjavik?

Can I find deals for business class flights from St. Louis to Reykjavik?

What is the cheapest month to book a flight from St. Louis to Reykjavik?

Traveling to a place near Reykjavik?

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Alternative routes for St. Louis to Reykjavik

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Top 4 airlines flying from St. Louis to Reykjavik

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