What is the cheapest airline that flies from Missouri to Washington?

Frontier, American Airlines, and Alaska Airlines are the most popular carriers operating from Missouri to Washington

How many flights depart from Missouri to State of Washington on average per week?

As of December 2025, there are 107 flights per week flying from Missouri to State of Washington. The most common day of the week flights depart is Thu, with 24% of flights taking off on this day.

What airlines fly to State of Washington?

Alaska Airlines, Delta and American Airlines are the top three most popular airlines that fly to State of Washington from Missouri according to our data. Alaska Airlines is the first choice among our users, with 55% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 8 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

How many flights depart from Missouri to State of Washington on average per day?

As of December 2025, there are 15 flights per day flying from Missouri to State of Washington. The most common time of day flights depart is 7:00AM, with 72% of flights taking off at noon.

How long is the flight from Missouri to State of Washington?

If you’re flying from a popular airport in Missouri, such as Kansas City or St. Louis, and flying into State of Washington, then you can expect flight times to average 4h and 4h 15m, respectively.

When did momondo last update prices for flights from Missouri to Washington?

Prices for flights from Missouri to Washington refresh daily.

How many operators does momondo search for flights from Missouri to Washington?

As of December 2025, there are 8 operators available to choose from for flights from Missouri to Washington.

How old do you have to be to fly from Missouri to Washington?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Missouri to Washington.

What documentation or ID do you need to fly to Washington?

The required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$62 Cheap Flights from Missouri to Washington in 2025/26

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Find the cheapest flights from Missouri to Washington

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:31 pm - 1:34 pm

MCI

SEA

19h 03m1 stop

3:58 pm - 7:42 pm

SEA

MCI

25h 44m1 stop

$162Frontier

sex, jan 9 - sáb, jan 17

8:23 pm - 11:21 am

MCI

SEA

16h 58m1 stop

12:19 pm - 7:42 pm

SEA

MCI

29h 23m1 stop

$171Frontier

qui, jan 8 - qui, jan 15

3:59 pm - 5:57 pm

MCI

PDX

3h 58mnonstop

11:59 am - 7:42 pm

PDX

MCI

5h 43m1 stop

$175Multiple Airlines

seg, jan 12 - sex, jan 16

3:59 pm - 5:57 pm

MCI

PDX

3h 58mnonstop

9:39 am - 3:05 pm

PDX

MCI

3h 26mnonstop

$177Alaska Airlines

ter, jan 13 - ter, jan 20

4:56 pm - 7:02 pm

MCI

PDX

4h 06mnonstop

9:39 am - 3:05 pm

PDX

MCI

3h 26mnonstop

$187Alaska Airlines

ter, jan 6 - dom, jan 11

6:00 am - 8:15 am

MCI

SEA

4h 15mnonstop

8:15 am - 1:50 pm

SEA

MCI

3h 35mnonstop

$189Hawaiian Airlines

seg, jan 5 - ter, jan 13

6:30 am - 12:32 pm

MCI

PDX

8h 02m1 stop

5:50 am - 1:58 pm

PDX

MCI

6h 08m1 stop

$197Delta

qua, jan 7 - qua, jan 14

5:48 am - 11:45 am

MCI

PDX

7h 57m1 stop

12:35 pm - 11:12 pm

PDX

MCI

8h 37m1 stop

$206American Airlines

dom, fev 1 - ter, fev 3

6:30 am - 12:33 pm

MCI

SEA

8h 03m1 stop

5:55 pm - 11:23 pm

SEA

MCI

3h 28mnonstop

$209Delta

sex, jan 9 - sex, jan 16

1:56 pm - 6:49 pm

MCI

GEG

6h 53m1 stop

6:00 am - 4:47 pm

GEG

MCI

8h 47m1 stop

$237American Airlines

qua, jan 7 - qua, jan 14

Frontier flights from Missouri to State of Washington

Our best Frontier deals on Missouri to State of Washington flight tickets

Frontier

Jan 9

MCI8:31 pmKansas City

19h 03m

1 stop

SEA1:34 pmSeattle/Tacoma Intl

Jan 17

SEA3:58 pmSeattle/Tacoma Intl

25h 44m

1 stop

MCI7:42 pmKansas City

$162

Find similar

Frontier

Jan 8

MCI8:23 pmKansas City

16h 58m

1 stop

SEA11:21 amSeattle/Tacoma Intl

Jan 15

SEA12:19 pmSeattle/Tacoma Intl

29h 23m

1 stop

MCI7:42 pmKansas City

$171

Find similar

Frontier

Jan 31

STL8:22 pmLambert-St Louis

40h 57m

2 stops

SEA11:19 amSeattle/Tacoma Intl

Feb 8

SEA12:34 pmSeattle/Tacoma Intl

22h 16m

1 stop

STL12:50 pmLambert-St Louis

$191

Find similar

Delta flights from Missouri to State of Washington

Our best Delta deals on Missouri to State of Washington flight tickets

Delta

Jan 7

MCI6:30 amKansas City

8h 02m

1 stop

PDX12:32 pmPortland

Jan 14

PDX5:50 amPortland

6h 08m

1 stop

MCI1:58 pmKansas City

$197

Find similar

Delta

Jan 9

MCI7:00 amKansas City

4h 06m

SEA9:06 amSeattle/Tacoma Intl

Jan 16

SEA5:55 pmSeattle/Tacoma Intl

3h 28m

MCI11:23 pmKansas City

$199

Find similar

Delta

Jan 7

MCI6:30 amKansas City

8h 02m

1 stop

PDX12:32 pmPortland

Jan 12

PDX5:50 amPortland

6h 08m

1 stop

MCI1:58 pmKansas City

$207

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

sex 1/9

8:31 pm-1:34 pm

1 stop19h 03m

Seattle/Tacoma Intl

sáb 1/17

3:58 pm-7:42 pm

1 stop25h 44m

$162

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

qui 1/8

8:23 pm-11:21 am

1 stop16h 58m

Seattle/Tacoma Intl

qui 1/15

12:19 pm-7:42 pm

1 stop29h 23m

$171

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

seg 1/12

3:59 pm-5:57 pm

Nonstop3h 58m

Portland

sex 1/16

11:59 am-7:42 pm

1 stop5h 43m

$175

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

ter 1/13

3:59 pm-5:57 pm

Nonstop3h 58m

Portland

ter 1/20

9:39 am-3:05 pm

Nonstop3h 26m

$177

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

ter 1/6

4:56 pm-7:02 pm

Nonstop4h 06m

Portland

dom 1/11

9:39 am-3:05 pm

Nonstop3h 26m

$187

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

seg 1/5

6:00 am-8:15 am

Nonstop4h 15m

Seattle/Tacoma Intl

ter 1/13

8:15 am-1:50 pm

Nonstop3h 35m

$189

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

qua 1/7

6:30 am-12:32 pm

1 stop8h 02m

Portland

qua 1/14

5:50 am-1:58 pm

1 stop6h 08m

$197

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

dom 2/1

5:48 am-11:45 am

1 stop7h 57m

Portland

ter 2/3

12:35 pm-11:12 pm

1 stop8h 37m

$206

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

sex 1/9

6:30 am-12:33 pm

1 stop8h 03m

Seattle/Tacoma Intl

sex 1/16

5:55 pm-11:23 pm

Nonstop3h 28m

$209

Kansas CitySpokane

MCI - GEG

MCIGEG

Kansas City

qua 1/7

1:56 pm-6:49 pm

1 stop6h 53m

Spokane

qua 1/14

6:00 am-4:47 pm

1 stop8h 47m

$237

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Missouri to State of Washington

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to State of Washington?

The month of October is, on average, the cheapest month to fly to State of Washington from Missouri, with most prices found around $249. If you aren’t able to travel to State of Washington during the month of October, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $264.

What is the cheapest day to depart on your flight to State of Washington?

The cheapest day to depart from Missouri to State of Washington is on a Tuesday. Travelers who choose to depart for State of Washington on a Tuesday will often find tickets for as low as $454. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Missouri to State of Washington for around $570.

What is the cheapest time of day to depart on your flight to State of Washington?

The cheapest time of day to fly to State of Washington is in the afternoon when flights can be purchased for as low as $448. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $517 on average. Flights to State of Washington from Missouri at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Missouri to Washington flight route?

Fly from Lambert-St Louis to Seattle/Tacoma Intl for the best Missouri - Washington flight prices

How far in advance should I book a flight to State of Washington?

You are more likely to see cheaper flights to State of Washington from Missouri when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $340 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from Missouri for as low as $301 on momondo.

What cabin class options are available on Missouri to Washington flights?

There are 4 cabin classes available to choose from on Missouri to Washington flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Missouri to State of Washington flights?

You could potentially save up to 31% on your flight if you consider stops on a Missouri to State of Washington flight.

Cheap Missouri to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missouri to State of Washington

Best Price Found	$174
Fastest flight time	3h 53m
Direct flights	Every day
Airports in State of Washington	96 airports

The best one-way flight to State of Washington from Missouri in the past 72 hours is $174. The best round-trip flight deal from Missouri to State of Washington found on momondo in the last 72 hours is $302.

The fastest flight from Missouri to State of Washington takes 3h 53m

Direct flights go from Missouri to State of Washington every day.

There are 96 airports in State of Washington. From Missouri there are direct flights to Portland (PDX), Seattle/Tacoma Intl (SEA).

Search flight deals

When did momondo last update prices for flights from Missouri to Washington?
Prices for flights from Missouri to Washington refresh daily.
How many operators does momondo search for flights from Missouri to Washington?
As of December 2025, there are 8 operators available to choose from for flights from Missouri to Washington.
How old do you have to be to fly from Missouri to Washington?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Missouri to Washington.
What documentation or ID do you need to fly to Washington?
The required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Missouri to State of Washington?
momondo data reveals that the most frequently booked plane model on the route from Missouri to State of Washington is Boeing 737, representing 42.68% of all bookings. The subsequent popular models are Boeing 737-900 Passenger/BBJ3 (winglets) at 20.66%, Boeing 737-800 Passenger/BBJ2 (winglets) at 15.62%, and Boeing 737 MAX 9 at 9.70%.

Best airlines flying from Missouri to State of Washington

Compare and see reviews for airlines that fly from Missouri to State of Washington with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $94	Free Cancellation	Rating 7.9 8,009 reviews	Search Delta flights
Spirit Airlines	PriceFrom $111	Free Cancellation	Rating 6.3 8,174 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $119	Free Cancellation	Rating 5.8 3,084 reviews	Search Frontier flights
Hawaiian Airlines	PriceFrom $149	Free Cancellation	Rating 7.8 2,818 reviews	Search Hawaiian Airlines flights
Southwest	PriceFrom $176	Free Cancellation	Rating 7.9 4,252 reviews	Search Southwest flights
American Airlines	PriceFrom $188	Free Cancellation	Rating 7.2 11,048 reviews	Search American Airlines flights
United Airlines	PriceFrom $193	Free Cancellation	Rating 7.4 9,095 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $203	Free Cancellation	Rating 8.0 11,429 reviews	Search Alaska Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Missouri to Washington?

Finding the right flight to Washington from Missouri is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington quick and easy, saving you time and money.

Can I find flights from Missouri to Washington with flexible booking policies on momondo?

All flight searches from Missouri to Washington on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Missouri to Washington?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington from Missouri.

I’m not ready to book a flight from Missouri to Washington right now. Can momondo alert me if prices change?

Price alerts on flights to Washington from Missouri are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your State of Washington trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from Missouri to Washington from $64

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to Washington departing on 2/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Filter for what you want

Filter for what you want

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Find the cheapest flights from Missouri to Washington

Cheap round-trip flights

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Frontier flights from Missouri to State of Washington

Our best Frontier deals on Missouri to State of Washington flight tickets

Delta flights from Missouri to State of Washington

Our best Delta deals on Missouri to State of Washington flight tickets

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How to get the cheapest flight ticket from Missouri to State of Washington

What is the cheapest month to fly to State of Washington?

What is the cheapest day to depart on your flight to State of Washington?

What is the cheapest time of day to depart on your flight to State of Washington?

What is the cheapest Missouri to Washington flight route?

Fly from Lambert-St Louis to Seattle/Tacoma Intl for the best Missouri - Washington flight prices

How far in advance should I book a flight to State of Washington?

What cabin class options are available on Missouri to Washington flights?

There are 4 cabin classes available to choose from on Missouri to Washington flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Missouri to State of Washington flights?

You could potentially save up to 31% on your flight if you consider stops on a Missouri to State of Washington flight.

What is the cheapest airline that flies from Missouri to Washington?

Frontier, American Airlines, and Alaska Airlines are the most popular carriers operating from Missouri to Washington

What airlines fly to State of Washington?

How many flights depart from Missouri to State of Washington on average per day?

As of December 2025, there are 15 flights per day flying from Missouri to State of Washington. The most common time of day flights depart is 7:00AM, with 72% of flights taking off at noon.

How many flights depart from Missouri to State of Washington on average per week?

As of December 2025, there are 107 flights per week flying from Missouri to State of Washington. The most common day of the week flights depart is Thu, with 24% of flights taking off on this day.

How long is the flight from Missouri to State of Washington?

If you’re flying from a popular airport in Missouri, such as Kansas City or St. Louis, and flying into State of Washington, then you can expect flight times to average 4h and 4h 15m, respectively.

Cheap Missouri to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missouri to State of Washington

Best Price Found

Fastest flight time

Direct flights

Airports in State of Washington

When did momondo last update prices for flights from Missouri to Washington?

How many operators does momondo search for flights from Missouri to Washington?

How old do you have to be to fly from Missouri to Washington?

What documentation or ID do you need to fly to Washington?

What is the most popular plane model from Missouri to State of Washington?

Best airlines flying from Missouri to State of Washington

Compare and see reviews for airlines that fly from Missouri to State of Washington with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Missouri to Washington?

Can I find flights from Missouri to Washington with flexible booking policies on momondo?

How can momondo help me find flights from Missouri to Washington?

I’m not ready to book a flight from Missouri to Washington right now. Can momondo alert me if prices change?

An easier way to manage your State of Washington trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Washington

Popular cities in Washington

Popular flights according to clicks in the last 7 days on momondo