How do I get Price Alerts for flights from Seattle to Monrovia?

Confirm your travel details to search for the latest offers for flights from Seattle to Monrovia . While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

How can I save money on flights from Seattle to Monrovia with momondo?

Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore” . Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

How does momondo find its flight prices?

We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Monrovia Roberts Intl Airport?

Prices for flights from Seattle/Tacoma Intl Airport to Monrovia Roberts Intl Airport are updated daily.

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Monrovia Roberts Intl Airport?

The number of operators available for flights from Seattle/Tacoma Intl Airport to Monrovia Roberts Intl Airport is 1 as of May 2026.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Monrovia Roberts Intl Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Monrovia Roberts Intl Airport.

What documentation or ID do you need to fly to Monrovia Roberts Intl Airport?

The required travel and health documents for your Monrovia Roberts Intl Airport 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 Monrovia Roberts Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$1,639 Cheap Flights from Seattle to Monrovia in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Seattle to Monrovia

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:04 pm - 7:50 pm

SEA

ROB

37h 46m

3 stops

9:10 pm - 8:24 pm

ROB

SEA

30h 14m

2 stops

$1,639United Airlines

Wed, Oct 7 - Sun, Oct 11

10:42 am - 7:50 pm

SEA

ROB

26h 08m

3 stops

9:10 pm - 9:04 pm

ROB

SEA

30h 54m

2 stops

$1,735Brussels Airlines

Thu, Aug 20 - Wed, Sep 30

10:42 am - 7:50 pm

SEA

ROB

26h 08m

3 stops

9:10 pm - 6:32 pm

ROB

SEA

28h 22m

3 stops

$1,765Multiple Airlines

Thu, Aug 20 - Wed, Sep 30

10:58 pm - 7:50 pm

SEA

ROB

37h 52m

3 stops

9:10 pm - 9:56 pm

ROB

SEA

31h 46m

3 stops

$1,835United Airlines

Wed, Oct 7 - Sun, Oct 11

8:10 am - 5:50 pm

SEA

ROB

26h 40m

3 stops

7:30 am - 9:37 am

ROB

SEA

33h 07m

3 stops

$1,936Multiple Airlines

Wed, Aug 19 - Sat, Sep 26

8:10 am - 5:50 pm

SEA

ROB

26h 40m

2 stops

9:10 pm - 9:04 pm

ROB

SEA

30h 54m

2 stops

$1,971Multiple Airlines

Thu, Aug 20 - Wed, Sep 30

8:38 am - 5:50 pm

SEA

ROB

26h 12m

2 stops

7:30 am - 9:37 am

ROB

SEA

33h 07m

3 stops

$2,263Ethiopian Air

Wed, Aug 19 - Sat, Sep 26

11:20 pm - 7:50 pm

SEA

ROB

37h 30m

3 stops

7:30 am - 3:31 pm

ROB

SEA

39h 01m

2 stops

$2,408Multiple Airlines

Fri, Jul 31 - Sat, Sep 5

8:22 am - 5:50 pm

SEA

ROB

26h 28m

3 stops

11:05 am - 3:42 pm

ROB

SEA

35h 37m

3 stops

$2,474Multiple Airlines

Mon, Jun 8 - Thu, Jun 25

12:10 pm - 7:50 pm

SEA

ROB

48h 40m

2 stops

7:30 am - 3:40 pm

ROB

SEA

39h 10m

2 stops

$2,475Multiple Airlines

Wed, Aug 19 - Sat, Sep 26

United Airlines flights from Seattle to Monrovia

Our best United Airlines deals on Seattle to Monrovia flight tickets

United Airlines

Oct 7

SEA11:04 pmSeattle/Tacoma Intl

37h 46m

3 stops

ROB7:50 pmMonrovia Roberts Intl

Oct 11

ROB9:10 pmMonrovia Roberts Intl

30h 14m

2 stops

SEA8:24 pmSeattle/Tacoma Intl

$1,639

United Airlines

Oct 7

SEA10:58 pmSeattle/Tacoma Intl

37h 52m

3 stops

ROB7:50 pmMonrovia Roberts Intl

Oct 11

ROB9:10 pmMonrovia Roberts Intl

31h 46m

3 stops

SEA9:56 pmSeattle/Tacoma Intl

$1,835

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleMonrovia

SEA - ROB

SEAROB

Seattle/Tacoma Intl

Wed 10/7

11:04 pm-7:50 pm

3 stops37h 46m

Monrovia Roberts Intl

Sun 10/11

9:10 pm-8:24 pm

2 stops30h 14m

$1,639

SeattleMonrovia

SEA - ROB

SEAROB

Seattle/Tacoma Intl

Thu 8/20

10:42 am-7:50 pm

3 stops26h 08m

Monrovia Roberts Intl

Wed 9/30

9:10 pm-9:04 pm

2 stops30h 54m

$1,735

Quickest round-trip

SeattleMonrovia

SEA - ROB

SEAROB

Seattle/Tacoma Intl

Thu 8/20

10:42 am-7:50 pm

3 stops26h 08m

Monrovia Roberts Intl

Wed 9/30

9:10 pm-6:32 pm

3 stops28h 22m

$1,765

SeattleMonrovia

SEA - ROB

SEAROB

Seattle/Tacoma Intl

Wed 10/7

10:58 pm-7:50 pm

3 stops37h 52m

Monrovia Roberts Intl

Sun 10/11

9:10 pm-9:56 pm

3 stops31h 46m

$1,835

SeattleMonrovia

SEA - ROB

SEAROB

Seattle/Tacoma Intl

Wed 8/19

8:10 am-5:50 pm

3 stops26h 40m

Monrovia Roberts Intl

Sat 9/26

7:30 am-9:37 am

3 stops33h 07m

$1,936

SeattleMonrovia

SEA - ROB

SEAROB

Seattle/Tacoma Intl

Thu 8/20

8:10 am-5:50 pm

2 stops26h 40m

Monrovia Roberts Intl

Wed 9/30

9:10 pm-9:04 pm

2 stops30h 54m

$1,971

SeattleMonrovia

SEA - ROB

SEAROB

Seattle/Tacoma Intl

Wed 8/19

8:38 am-5:50 pm

2 stops26h 12m

Monrovia Roberts Intl

Sat 9/26

7:30 am-9:37 am

3 stops33h 07m

$2,263

SeattleMonrovia

SEA - ROB

SEAROB

Seattle/Tacoma Intl

Fri 7/31

11:20 pm-7:50 pm

3 stops37h 30m

Monrovia Roberts Intl

Sat 9/5

7:30 am-3:31 pm

2 stops39h 01m

$2,408

SeattleMonrovia

SEA - ROB

SEAROB

Seattle/Tacoma Intl

Mon 6/8

8:22 am-5:50 pm

3 stops26h 28m

Monrovia Roberts Intl

Thu 6/25

11:05 am-3:42 pm

3 stops35h 37m

$2,474

SeattleMonrovia

SEA - ROB

SEAROB

Seattle/Tacoma Intl

Wed 8/19

12:10 pm-7:50 pm

2 stops48h 40m

Monrovia Roberts Intl

Sat 9/26

7:30 am-3:40 pm

2 stops39h 10m

$2,475

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Seattle to Monrovia

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Monrovia according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Seattle to Monrovia (SEA to ROB) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Monrovia

Fastest flight time	26h 08m
Direct flights	None

The fastest flight from Seattle to Monrovia takes 26h 08m

There are no direct flights from Seattle to Monrovia. There are no popular flight routes from Seattle to Monrovia.

Search flight deals

Frequently asked questions about flying from Seattle to Monrovia

How far is Seattle/Tacoma Intl to Monrovia Roberts Intl by plane?
A flight from Seattle/Tacoma Intl to Monrovia Roberts Intl will travel around 6869.8 mi. Flights usually cover this in 26h 08m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Monrovia Roberts Intl Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Monrovia Roberts Intl Airport are updated daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Monrovia Roberts Intl Airport?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Monrovia Roberts Intl Airport is 1 as of May 2026.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Monrovia Roberts Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Monrovia Roberts Intl Airport.
What documentation or ID do you need to fly to Monrovia Roberts Intl Airport?
The required travel and health documents for your Monrovia Roberts Intl Airport 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 Monrovia Roberts Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Seattle to Monrovia?
Based on momondo bookings for flights between Seattle and Monrovia, the leading airline is Brussels Airlines, making up 100% of the total bookings.

Best airlines flying from Seattle to Monrovia

Compare and see reviews for airlines that fly from Seattle to Monrovia with momondo

Airline	Rating	Free Cancellation	Price
Brussels Airlines	PriceFrom $1,302	Free Cancellation	Rating 7.2 410 reviews		Search Brussels Airlines flights

Frequently asked questions about flying from Seattle to Monrovia

How do I get Price Alerts for flights from Seattle to Monrovia?
Confirm your travel details to search for the latest offers for flights from Seattle to Monrovia. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.
How can I save money on flights from Seattle to Monrovia with momondo?
Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.
How does momondo find its flight prices?
We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Monrovia?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to Monrovia. momondo saves you time and could save you money on your trip.

Can I find flights from Seattle to Monrovia with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Seattle to Monrovia flights to just show those with flexible booking policies.

How can momondo help me find flights from Seattle to Monrovia?

Once all potential Seattle to Monrovia flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from Seattle to Monrovia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Monrovia and let you know when they change.

An easier way to manage your Monrovia 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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Sat 6/20

Sat 6/27

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Liberia

Airlines

Cabin classes

Other flights from Seattle

Complete your trip

Feeling lucky

Fly your favorite airline to Monrovia

Brussels Airlines

Cheap flights from Seattle to Monrovia from $1,639

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Monrovia departing on 10/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Seattle to Monrovia

Cheap round-trip flights

Cheap one-way flights

United Airlines flights from Seattle to Monrovia

Our best United Airlines deals on Seattle to Monrovia flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Seattle to Monrovia that are best for you.

When to book flights from Seattle to Monrovia

Cheap Seattle to Monrovia (SEA to ROB) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Monrovia

Fastest flight time

Direct flights

Frequently asked questions about flying from Seattle to Monrovia

Best airlines flying from Seattle to Monrovia

Compare and see reviews for airlines that fly from Seattle to Monrovia with momondo

Frequently asked questions about flying from Seattle to Monrovia

Why use momondo?

An easier way to manage your Monrovia 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 Liberia

Fly your favorite airline to Monrovia

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Monrovia

List of cabin classes available on flights landing in Monrovia. Availability may vary depending on flight origin and airline.

Fly to other destinations from Seattle

According to popular flight searches on momondo this year

Complete your trip to Monrovia

Explore popular destinations other users love

According to popular flight searches on momondo this year