Cheap flights from Missouri to Washington from $79

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 11/7. 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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Cheap round-trip flights

Frontier Logo
8:38 pm - 11:48 amMCI-PDX
17h 10m1 stop
Frontier Logo
12:43 pm - 7:53 pmPDX-MCI
5h 10m1 stop
$206Frontier
Find Deal
Thu, Oct 9 - Thu, Oct 16
Alaska Airlines Logo
4:49 pm - 6:47 pmMCI-PDX
3h 58mnonstop
Alaska Airlines Logo
10:30 am - 3:54 pmPDX-MCI
3h 24mnonstop
$207Alaska Airlines
Find Deal
Mon, Nov 10 - Sat, Nov 15
Delta Logo
10:48 am - 5:27 pmMCI-PDX
8h 39m1 stop
Delta Logo
12:40 am - 10:08 amPDX-MCI
7h 28m1 stop
$217Delta
Find Deal
Sat, Oct 18 - Mon, Oct 20
United Airlines Logo
9:10 am - 1:03 pmMCI-PDX
5h 53m1 stop
United Airlines Logo
5:00 am - 3:56 pmPDX-MCI
8h 56m2 stops
$222United Airlines
Find Deal
Sat, Oct 18 - Tue, Oct 21
Hawaiian Airlines Logo
7:00 am - 9:33 amSTL-SEA
4h 33mnonstop
Hawaiian Airlines Logo
9:15 am - 3:18 pmSEA-STL
4h 03mnonstop
$231Hawaiian Airlines
Find Deal
Tue, Nov 4 - Tue, Nov 11
Delta Logo
6:50 am - 12:47 pmSTL-SEA
7h 57m1 stop
Delta Logo
6:00 am - 3:31 pmSEA-STL
7h 31m1 stop
$232Delta
Find Deal
Tue, Oct 7 - Sat, Oct 11
United Airlines Logo
6:00 am - 9:29 amMCI-PDX
5h 29m1 stop
United Airlines Logo
11:59 pm - 8:56 amPDX-MCI
6h 57m1 stop
$237United Airlines
Find Deal
Thu, Oct 23 - Mon, Oct 27
Hawaiian Airlines Logo
6:33 am - 9:05 amSTL-SEA
4h 32mnonstop
Hawaiian Airlines Logo
6:02 pm - 12:03 amSEA-STL
4h 01mnonstop
$238Hawaiian Airlines
Find Deal
Sat, Oct 18 - Sat, Oct 25
American Airlines Logo
7:01 am - 12:45 pmSTL-SEA
7h 44m1 stop
American Airlines Logo
12:59 am - 10:39 amSEA-STL
8h 40m1 stop
$269American Airlines
Find Deal
Thu, Oct 30 - Sat, Nov 1
American Airlines Logo
9:45 am - 3:31 pmMCI-SEA
7h 46m1 stop
American Airlines Logo
5:24 am - 2:06 pmSEA-MCI
6h 42m1 stop
$277American Airlines
Find Deal
Wed, Nov 12 - Wed, Nov 19

Hawaiian Airlines flights from Missouri to State of Washington

Our best Hawaiian Airlines deals on Missouri to State of Washington flight tickets
Hawaiian Airlines
Nov 4
STL7:00 amLambert-St Louis
4h 33m
SEA9:33 amSeattle/Tacoma Intl
Nov 11
SEA9:15 amSeattle/Tacoma Intl
4h 03m
STL3:18 pmLambert-St Louis
Hawaiian Airlines
Oct 18
STL6:33 amLambert-St Louis
4h 32m
SEA9:05 amSeattle/Tacoma Intl
Oct 25
SEA6:02 pmSeattle/Tacoma Intl
4h 01m
STL12:03 amLambert-St Louis
Hawaiian Airlines
Mar 9
MCI5:55 pmKansas City
3h 53m
PDX7:48 pmPortland
Mar 10
PDX10:55 amPortland
3h 25m
MCI4:20 pmKansas City

Frontier flights from Missouri to State of Washington

Our best Frontier deals on Missouri to State of Washington flight tickets
Frontier
Oct 9
MCI8:38 pmKansas City
17h 10m
1 stop
PDX11:48 amPortland
Oct 16
PDX12:43 pmPortland
5h 10m
1 stop
MCI7:53 pmKansas City
Frontier
Oct 22
STL7:52 pmLambert-St Louis
18h 15m
1 stop
SEA12:07 pmSeattle/Tacoma Intl
Oct 26
SEA8:43 pmSeattle/Tacoma Intl
10h 24m
1 stop
STL9:07 amLambert-St Louis
Frontier
Oct 24
STL9:59 pmLambert-St Louis
16h 08m
2 stops
SEA12:07 pmSeattle/Tacoma Intl
Oct 27
SEA4:11 pmSeattle/Tacoma Intl
14h 56m
2 stops
STL9:07 amLambert-St Louis

momondo Fare Finder

 
Customize your flight search to find flights from Missouri to State of Washington 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, momondo users made 832,500 searches. Data last updated September 22, 2025.
Use the filters below to find and compare flights from Missouri to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Thu 10/9

8:38 pm-11:48 am

1 stop17h 10m

Portland

Thu 10/16

12:43 pm-7:53 pm

1 stop5h 10m

$206

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Mon 11/10

4:49 pm-6:47 pm

Nonstop3h 58m

Portland

Sat 11/15

10:30 am-3:54 pm

Nonstop3h 24m

$207

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Sat 10/18

10:48 am-5:27 pm

1 stop8h 39m

Portland

Mon 10/20

12:40 am-10:08 am

1 stop7h 28m

$217

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Sat 10/18

9:10 am-1:03 pm

1 stop5h 53m

Portland

Tue 10/21

5:00 am-3:56 pm

2 stops8h 56m

$222

St. LouisSeattle

STL - SEA

STLSEA

Lambert-St Louis

Tue 11/4

7:00 am-9:33 am

Nonstop4h 33m

Seattle/Tacoma Intl

Tue 11/11

9:15 am-3:18 pm

Nonstop4h 03m

$231

St. LouisSeattle

STL - SEA

STLSEA

Lambert-St Louis

Tue 10/7

6:50 am-12:47 pm

1 stop7h 57m

Seattle/Tacoma Intl

Sat 10/11

6:00 am-3:31 pm

1 stop7h 31m

$232

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Thu 10/23

6:00 am-9:29 am

1 stop5h 29m

Portland

Mon 10/27

11:59 pm-8:56 am

1 stop6h 57m

$237

St. LouisSeattle

STL - SEA

STLSEA

Lambert-St Louis

Sat 10/18

6:33 am-9:05 am

Nonstop4h 32m

Seattle/Tacoma Intl

Sat 10/25

6:02 pm-12:03 am

Nonstop4h 01m

$238

St. LouisSeattle

STL - SEA

STLSEA

Lambert-St Louis

Thu 10/30

7:01 am-12:45 pm

1 stop7h 44m

Seattle/Tacoma Intl

Sat 11/1

12:59 am-10:39 am

1 stop8h 40m

$269

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Wed 11/12

9:45 am-3:31 pm

1 stop7h 46m

Seattle/Tacoma Intl

Wed 11/19

5:24 am-2:06 pm

1 stop6h 42m

$277

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington from

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

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 $291. 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 $296.

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 $465. 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 $561.

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 $446. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $523 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 Kansas City 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 $353 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 $283 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 4% 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

$179

Fastest flight time

3h 51m

Direct flights

Every day

Airports in State of Washington

2 airports
The best one-way flight to State of Washington from Missouri in the past 72 hours is $179. The best round-trip flight deal from Missouri to State of Washington found on momondo in the last 72 hours is $298.
The fastest flight from Missouri to State of Washington takes 3h 51m
Direct flights go from Missouri to State of Washington every day.
There are 2 airports near State of Washington: Portland (PDX), Seattle/Tacoma Intl (SEA)
  • 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?

  • 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?

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
DeltaPriceFrom $94Free CancellationRating
7.9
7,971 reviews
Search Delta flights
Spirit AirlinesPriceFrom $111Free CancellationRating
6.3
8,031 reviews
Search Spirit Airlines flights
FrontierPriceFrom $118Free CancellationRating
5.8
3,166 reviews
Search Frontier flights
Hawaiian AirlinesPriceFrom $149Free CancellationRating
7.8
2,739 reviews
Search Hawaiian Airlines flights
SouthwestPriceFrom $179Free CancellationRating
8.0
4,244 reviews
Search Southwest flights
American AirlinesPriceFrom $188Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $216Free CancellationRating
7.4
8,922 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $226Free CancellationRating
8.0
10,000 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

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1 adult
Wed 10/22
Wed 10/29

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