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Cheap flights from Mexico City (MEX) to St. Louis (STL) from $226

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/25. 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.
MEX — STL
May 21 — May 281
From?
To?
Tue 5/21
Tue 5/28
1 adult, Economy
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The best prices from Mexico City Benito Juarez to Lambert-St Louis are usually found in February or April, booked 56 days in advance, depart on a Thursday or Wednesday and return on a Wednesday

Cheap flight deals from Mexico City to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Mexico City (MEX) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 16, 2024.

Popular in

July

Cheapest in

February

Round-trip from

$320

One-way from

$250
High demand for flights, 17% potential price rise
Search Deals
Best time to find cheap flights, 19% potential price drop
Search Deals
From Mexico City Benito Juarez to Lambert-St Louis
Search Deals
One-way flight from Mexico City Benito Juarez to Lambert-St Louis
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What is the cheapest day to fly round-trip from Mexico City to St. Louis?

Monday flights are generally found to be more expensive for flights from Mexico City to St. Louis. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to St. Louis.

How far in advance should I book a flight from Mexico City to St. Louis?

Travelers have found it’s best to book a flight 57 days in advance to save up to 63% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 57 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Mexico City to St. Louis 1-2 weeks in advance for as low as $682, or $852 for flights within the next 24 hours.

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

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, February can be a great choice for travel to St. Louis. Flights to St. Louis from Mexico City in February are about $595 on average during February, but can be found for as low as $422.

When is the cheapest time to fly from Mexico City to St. Louis (MEX - STL)?

When flying from Mexico City to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 24% versus a flight in the afternoon.

Cheap Frontier flights from Mexico City to St. Louis

Explore cheap flight options specifically provided by Frontier for the route between Mexico City and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Check out some of the cheapest Frontier flights we've come across from Mexico City to St. Louis. Come back soon if you're not finding the exact deal you're looking for.
Sun 8/253:30 pmMEX - STL
1 stop20h 52mFrontier
Mon 8/268:00 pmSTL - MEX
2 stops27h 00mFrontier
Deal found 5/16$360
Sun 8/2511:45 amMEX - STL
1 stop21h 33mFrontier
Mon 8/262:12 pmSTL - MEX
1 stop9h 38mFrontier
Deal found 5/16$363
Sun 6/93:45 pmMEX - STL
2 stops16h 44mFrontier
Fri 6/145:36 pmSTL - MEX
1 stop24h 54mFrontier
Deal found 5/15$367
Sun 6/911:05 amMEX - STL
1 stop29h 09mFrontier
Fri 6/145:36 pmSTL - MEX
1 stop24h 54mFrontier
Deal found 5/15$384

Cheap American Airlines flights from Mexico City to St. Louis

Explore cheap flight options specifically provided by American Airlines for the route between Mexico City and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Have a look at some of the cheapest available American Airlines flights departing from Mexico City and landing in St. Louis. Check back soon if you're not seeing flights that suit your needs.
Sun 6/93:25 pmMEX - STL
1 stop7h 25mAmerican Airlines
Wed 6/127:00 amSTL - MEX
1 stop6h 08mAmerican Airlines
Deal found 5/16$704
Sat 6/15:00 amMEX - STL
1 stop8h 13mAmerican Airlines
Sat 6/14:20 pmSTL - MEX
2 stops19h 05mAmerican Airlines
Deal found 5/15$6,337
Sat 6/15:00 amMEX - STL
1 stop8h 13mAmerican Airlines
Sat 6/14:20 pmSTL - MEX
1 stop20h 10mAmerican Airlines
Deal found 5/15$6,341
Sat 6/15:00 amMEX - STL
2 stops9h 28mAmerican Airlines
Sat 6/17:20 pmSTL - MEX
2 stops20h 00mAmerican Airlines
Deal found 5/15$6,928
Sun 8/255:00 amMEX - STL
1 stop9h 27mAmerican Airlines
Sun 8/256:10 pmSTL - MEX
1 stop21h 20mAmerican Airlines
Deal found 5/16$6,959

Cheap Mexico City to St. Louis flights in May & June 2024

Find cheap flight options from Mexico City to St. Louis specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Prices were last updated on May 16, 2024.
Scroll through some of the best deals on flights from Mexico City to St. Louis in 2024. Check back regularly for other flight deals.
Sun 6/93:45 pmMEX - STL
2 stops16h 44mFrontier
Fri 6/145:36 pmSTL - MEX
1 stop24h 54mFrontier
Deal found 5/15$367
Sun 6/911:05 amMEX - STL
1 stop29h 09mFrontier
Fri 6/145:36 pmSTL - MEX
1 stop24h 54mFrontier
Deal found 5/15$384
Sun 5/1910:55 amMEX - STL
1 stop22h 18mMultiple Airlines
Mon 5/204:45 pmSTL - MEX
2 stops13h 05mMultiple Airlines
Deal found 5/15$567
Thu 5/1610:55 amMEX - STL
1 stop22h 18mMultiple Airlines
Wed 12/1111:33 amSTL - MEX
1 stop12h 37mMultiple Airlines
Deal found 5/15$583
Sun 6/97:30 pmMEX - STL
2 stops15h 35mMultiple Airlines
Fri 6/148:35 pmSTL - MEX
3 stops26h 25mMultiple Airlines
Deal found 5/15$622
Sun 6/97:30 pmMEX - STL
2 stops15h 35mMultiple Airlines
Fri 6/143:07 pmSTL - MEX
2 stops23h 33mMultiple Airlines
Deal found 5/15$647
Sat 6/812:40 amMEX - STL
2 stops29h 20mMultiple Airlines
Fri 6/148:35 pmSTL - MEX
3 stops26h 25mMultiple Airlines
Deal found 5/15$649
Sun 5/193:45 pmMEX - STL
2 stops16h 51mFrontier
Mon 5/2010:21 pmSTL - MEX
2 stops23h 49mFrontier
Deal found 5/15$669
Sat 6/812:40 amMEX - STL
2 stops29h 20mMultiple Airlines
Fri 6/143:07 pmSTL - MEX
2 stops23h 33mMultiple Airlines
Deal found 5/15$674

Mexico City to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Mexico City and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Scroll through some of the best deals on flights from Mexico City to St. Louis in 2024. Check back regularly for other flight deals.
Sun 6/93:45 pmMEX - STL
2 stops16h 44mFrontier
Fri 6/145:36 pmSTL - MEX
1 stop24h 54mFrontier
Deal found 5/15$367
Sun 6/911:05 amMEX - STL
1 stop29h 09mFrontier
Fri 6/145:36 pmSTL - MEX
1 stop24h 54mFrontier
Deal found 5/15$384
Sun 5/1910:55 amMEX - STL
1 stop22h 18mMultiple Airlines
Mon 5/204:45 pmSTL - MEX
2 stops13h 05mMultiple Airlines
Deal found 5/15$567
Thu 5/1610:55 amMEX - STL
1 stop22h 18mMultiple Airlines
Wed 12/1111:33 amSTL - MEX
1 stop12h 37mMultiple Airlines
Deal found 5/15$583
Sun 6/97:30 pmMEX - STL
2 stops15h 35mMultiple Airlines
Fri 6/148:35 pmSTL - MEX
3 stops26h 25mMultiple Airlines
Deal found 5/15$622
Sun 6/97:30 pmMEX - STL
2 stops15h 35mMultiple Airlines
Fri 6/143:07 pmSTL - MEX
2 stops23h 33mMultiple Airlines
Deal found 5/15$647
Sat 6/812:40 amMEX - STL
2 stops29h 20mMultiple Airlines
Fri 6/148:35 pmSTL - MEX
3 stops26h 25mMultiple Airlines
Deal found 5/15$649
Sun 5/193:45 pmMEX - STL
2 stops16h 51mFrontier
Mon 5/2010:21 pmSTL - MEX
2 stops23h 49mFrontier
Deal found 5/15$669
Sat 6/812:40 amMEX - STL
2 stops29h 20mMultiple Airlines
Fri 6/143:07 pmSTL - MEX
2 stops23h 33mMultiple Airlines
Deal found 5/15$674

One-way flights to St. Louis from Mexico City

Search for one-way flight options from Mexico City to St. Louis. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Users in need of a one-way flight from Mexico City to St. Louis can choose from these deals. Users in need of a round-trip flight from Mexico City to St. Louis instead should update the search form at the top of page.
Sun 8/2511:15 pmMEX - STL
1 stop17h 29mVolaris
Deal found 5/16$226
Sun 8/2511:15 pmMEX - STL
2 stops21h 59mMultiple Airlines
Deal found 5/16$233
Tue 6/2511:45 amMEX - STL
1 stop24h 20mMultiple Airlines
Deal found 5/16$244
Fri 5/2411:15 pmMEX - STL
1 stop17h 23mVolaris
Deal found 5/15$250
Tue 6/254:50 pmMEX - STL
2 stops19h 15mMultiple Airlines
Deal found 5/16$261
Tue 7/168:30 amMEX - STL
2 stops29h 36mMultiple Airlines
Deal found 5/16$265
Fri 6/1412:50 pmMEX - STL
2 stops27h 38mMultiple Airlines
Deal found 5/15$268
Thu 5/3011:05 amMEX - STL
1 stop19h 03mMultiple Airlines
Deal found 5/16$290
Thu 5/307:30 pmMEX - STL
2 stops15h 35mMultiple Airlines
Deal found 5/16$295

Find flights from Mexico City to St. Louis within your budget

Customize your flight search to find flights from Mexico City to St. Louis 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, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$360 - $775

Route

Depart

Return

Price

Mexico City Benito JuarezLambert-St Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Sun 8/25

1 stop20h 52m

Lambert-St Louis

Mon 8/26

2 stops27h 00m

$360

Mexico City Benito JuarezLambert-St Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Sun 8/25

1 stop21h 33m

Lambert-St Louis

Mon 8/26

1 stop9h 38m

$363

Mexico City Benito JuarezLambert-St Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Sun 6/9

2 stops16h 44m

Lambert-St Louis

Fri 6/14

1 stop24h 54m

$367

Mexico City Benito JuarezLambert-St Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Sun 6/9

1 stop29h 09m

Lambert-St Louis

Fri 6/14

1 stop24h 54m

$384

Mexico City Benito JuarezLambert-St Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Sun 8/25

2 stops15h 35m

Lambert-St Louis

Mon 8/26

2 stops29h 39m

$534

Mexico City Benito JuarezLambert-St Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Sun 8/25

2 stops15h 35m

Lambert-St Louis

Mon 8/26

3 stops30h 29m

$541

Mexico City Benito JuarezLambert-St Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Sun 6/9

2 stops11h 18m

Lambert-St Louis

Wed 6/12

2 stops10h 05m

$652

Mexico City Benito JuarezLambert-St Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Sun 6/9

1 stop7h 25m

Lambert-St Louis

Wed 6/12

1 stop6h 08m

$704

Mexico City Benito JuarezLambert-St Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Sun 8/25

2 stops9h 13m

Lambert-St Louis

Sun 8/25

1 stop18h 49m

$775

Flights are sorted by cheapest first

Deals found on 5/16

When is the best time to book a flight from Mexico City to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Mexico City to St. Louis. Price data was last updated on May 10, 2024.
The price you pay for your flight from Mexico City to St. Louis may vary depending on when you book. For the best chance of a lower fare, look to book 56 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Search Deals

When is the cheapest time to fly from Mexico City to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Mexico City to St. Louis. Price data was last updated on May 12, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Mexico City to St. Louis flight should consider departing on Monday mornings when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to St. Louis by month

Plan your trip from Mexico City to St. Louis by taking into account the cheapest months to travel. The average price of a one-way flight from Mexico City to St. Louis is currently $259 while a round-trip flight costs $520. Price data was last updated on May 12, 2024.

Currently, September is the cheapest month in which you can book a flight from Mexico City to St. Louis (average of $320). Flying from Mexico City to St. Louis in July is currently the most expensive (average of $369). 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.

January

$326

February

$331

March

$357

April

$337

May

$342

June

$366

July

$369

August

$336

September

$320

October

$324

November

$336

December

$326

Temperature and rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature and rainfall totals by month.

STL

Temperature

32 - 80.6 °F

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated May 16, 2024.
Peruse reviews from past customers who have flown with Frontier and American Airlines from Mexico City to St. Louis 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
10,673 reviews
Check prices

Crew

8.6

Food

7.4

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Delta
8.0
Very good
10,673 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Crew

8.6

Food

7.4

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

WestJet
7.5
Good
2,919 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Crew

8.6

Food

7.4

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

United Airlines
7.4
Good
10,924 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Crew

8.6

Food

7.4

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

American Airlines
7.3
Good
14,514 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Crew

8.6

Food

7.4

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Volaris
6.7
Okay
1,500 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Crew

8.6

Food

7.4

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

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

  • Can I find flights from Mexico City to St. Louis for under $400 on Cheapflights?

    Yes, there are multiple flights from Mexico City to St. Louis for under $400. The cheapest flight booked recently is on Frontier for just $360, but on average you can expect to pay $1,146.

  • What are the cheapest airlines flying from Mexico City to St. Louis round-trip?

    Frontier, at $360, was found to be the cheapest airline from Mexico City to St. Louis.Alternate airlines to your destination round-trip include Delta and American Airlines. These flights start at 39% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Mexico City to St. Louis one-way?

    One-way options have recently been found by users for as low as $226 on Volaris. Other airlines that offer cheap prices include Delta from $365 and WestJet from $2,151 one-way.

  • What are the most popular airlines that fly from Mexico City to St. Louis?

    The most popular airlines flying from Mexico City to St. Louis are American Airlines, Delta and United Airlines. Something to consider prior to booking your flight.

  • What does MEX to STL mean?

    This is defined as Mexico City Benito Juarez Airport (MEX) and Lambert-St Louis Airport (STL). Codes like Lambert-St Louis Airport are often used to just call airports uniquely.

  • Can I find deals for flights from Mexico City to St. Louis that include extra baggage allowance?

    The amount of baggage you can bring on your Mexico City to St. Louis flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Mexico City to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Mexico City to St. Louis flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

  • How can I find direct flights from Mexico City to St. Louis?

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

  • Can I find deals for business class flights from Mexico City to St. Louis?

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

  • Can I find deals for flights from Mexico City to St. Louis that allow pets onboard?

    Many airlines flying from Mexico City to St. Louis offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Mexico City to St. Louis?

    Yes, you can often find last-minute deals on Mexico City to St. Louis flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Mexico City to St. Louis flight deals updated?

    The Mexico City to St. Louis flight deals you see on this page were last updated on 5/15.

See more FAQs

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Alternative routes for Mexico City to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.

Mexico City to Kansas City flights

Top 3 airlines flying from Mexico City to St. Louis

Discover the top 3 airlines that operate flights from Mexico City to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$457Average$475FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$515Average$597FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$542Average$904FlexibilityNo cancel feeOn-time71%
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Search flights from Mexico City to St. Louis by cabin class

Find flights from Mexico City to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Mexico City to St. Louis?

Cheapflights helps you search for flights from Mexico City to St. Louis via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Mexico City to St. Louis?

Millions of users choose and trust Cheapflights to book the best flight deals from Mexico City to St. Louis for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Mexico City to St. Louis with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Mexico City to St. Louis flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Mexico City to St. Louis become cheaper?

Yes! Start tracking prices for Mexico City to St. Louis flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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