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Thermos Flasks Comparison - September 2025

7 Best Thermos Flasks In the UK

1
Best Choice
9.7Exceptional
2
Best Value
9.6Exceptional
3
9.3Excellent
4
9.1Excellent
5
9.0Excellent
6
8.9Very Good
7
8.7Very Good
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Model

Thermos - Stainless King Red Travel Flask (1.2L) - Premium Leak Proof Insulated Tea & Coffee Flask for Hot & Cold Drinks, Built-in Cup, Twist-Pour Stopper, BPA-Free, Durable Steel, Dishwasher Safe
Model
Thermos - Stainless Steel Direct Drink Flask (470ml) Reusable Insulated Thermal Coffee Cup for Hot or Cold Drinks, Vacuum Sealed Water Flask with a Leak-Proof Lid, 10hr Hot/24hr Cold
Model
Thermos Thermo Cafe S/S Flask - 181109, Silver, 0.5 Litre
Model
Thermos Stainless Steel Flask, Hammertone Blue, 1 l
Model
Thermos Stainless King 470ml Multi-Purpose Thermos Flask - Original-Style Flask can be used as Travel Mug or Insulated Water Bottle for Daily Commute & Weekend Adventures – Matt Black, 5-Year Warranty
Model
Milton Vacuum Flask for Hot Drink 1 Litre (34 oz), Stainless Steel Double Walled Insulated Water Bottle for 24 Hour Hot and Cold Drinks with Cover, Leak Proof, BPA Free, Thermosteel Flip Lid 1000 ml
Model
Andes 1 Litre Stainless Steel Insulated Vacuum Travel Tea/Coffee Thermos Flask Bottle

Brand

Thermos
Brand
Thermos
Brand
Thermos
Brand
THERMOcafé by THERMOS 170694 ThermoCafé Stainless Steel Flask, Hammertone Blue, 1 L
Brand
Thermos
Brand
MILTON
Brand
Andes

Reviews

43,522 reviews
Reviews
11,546 reviews
Reviews
40,858 reviews
Reviews
22,882 reviews
Reviews
8,542 reviews
Reviews
187,772 reviews
Reviews
330 reviews

Features

Watertight

9.9
Watertight
9.9
Watertight
9.8
Watertight
9.8
Watertight
9.9
Watertight
8.9
Watertight
8.6

Simple to clean

9.6
Simple to clean
9.6
Simple to clean
9.6
Simple to clean
9.6
Simple to clean
9.6
Simple to clean
9.1
Simple to clean
9.1

Lasts a long time

9.6
Lasts a long time
9.8
Lasts a long time
9.6
Lasts a long time
9.4
Lasts a long time
9.3
Lasts a long time
8.6
Lasts a long time
8.6

Durability

9.8
Durability
9.8
Durability
9.6
Durability
9.6
Durability
9.9
Durability
9.1
Durability
8.6

Simple to use

9.9
Simple to use
9.9
Simple to use
9.6
Simple to use
9.6
Simple to use
9.6
Simple to use
9.1
Simple to use
8.6

Easy to grip

9.8
Easy to grip
9.9
Easy to grip
9.6
Easy to grip
9.6
Easy to grip
9.6
Easy to grip
9.1
Easy to grip
8.6

Worth the money

9.8
Worth the money
9.9
Worth the money
9.6
Worth the money
9.3
Worth the money
8.9
Worth the money
9.1
Worth the money
7.9

Tech Specs

product dimensions

32.41 x 15.01 x 9.8 cm 289.99 g
product dimensions
9.13 x 9.13 x 2.76 cm 285 g
product dimensions
2.76 x 2.76 x 9.84 cm 290.3 g
product dimensions
8.7 x 8.7 x 31 cm 520 g
product dimensions
25.2 x 8.41 x 5.99 cm 320 g
product dimensions
33.27 x 9.78 x 9.78 cm 530 g
product dimensions
32 x 8 x 32 cm 1 kg

item weight

289 g
item weight
285 Grams
item weight
0.64 Pounds
item weight
520 g
item weight
320 g
item weight
530 Grams
item weight
1 kg

customer reviews

4.7 4.7 out of 5 stars 21, 761 ratings 4.7 out of 5 stars
customer reviews
4.7 4.7 out of 5 stars 5, 773 ratings 4.7 out of 5 stars
customer reviews
4.6 4.6 out of 5 stars 20, 429 ratings 4.6 out of 5 stars
customer reviews
4.6 4.6 out of 5 stars 11, 441 ratings 4.6 out of 5 stars
customer reviews
4.7 4.7 out of 5 stars 4, 271 ratings 4.7 out of 5 stars
customer reviews
4.2 4.2 out of 5 stars 93, 886 ratings 4.2 out of 5 stars
customer reviews
4.1 4.1 out of 5 stars 165 ratings 4.1 out of 5 stars

material

Stainless Steel
material
-
material
-
material
Stainless Steel
material
Stainless Steel
material
-
material
Stainless Steel

special features

Cold 24 Hours, Warm
special features
-
special features
-
special features
Durable, Lightweight
special features
Hot 12 Hours, Cold 24 Hours
special features
-
special features
Leakproof, Double Wall

capacity

1.2 litres
capacity
-
capacity
-
capacity
1000 Millilitres
capacity
470 Millilitres
capacity
-
capacity
1 litres

color

Cranberry Red
color
-
color
-
color
Hammertone Blue
color
Black
color
-
color
Silver

item volume

-
item volume
470 Millilitres
item volume
500 Millilitres
item volume
-
item volume
-
item volume
1000 Millilitres
item volume
-

care instructions

-
care instructions
Hand Wash Only
care instructions
Not Dishwasher Safe
care instructions
-
care instructions
-
care instructions
Hand Wash Only
care instructions
-

batteries required

-
batteries required
No
batteries required
No
batteries required
-
batteries required
-
batteries required
No
batteries required
-

included components

-
included components
Lid
included components
Thermo Cafe S/S Flask 0.5L - 181109
included components
-
included components
-
included components
1-Piece Bottle 1 Litre
included components
-

Available On

Available On
Available On
Available On
Available On
Available On
Available On

Our Top 3 Picks

Here are the top 3 recommended products with more information to help you find the right product for you
  • 9.7
    1
    Thermos

    Thermos - Stainless King Red Travel Flask (1.2L) - Premium Leak Proof Insulated Tea & Coffee Flask for Hot & Cold Drinks, Built-in Cup, Twist-Pour Stopper, BPA-Free, Durable Steel, Dishwasher Safe

    9.9 Watertight
    9.9 Simple to use
    9.8 Durability

    Why we love it

    Keeps drinks hot or cold for 24 hours.
    Durable stainless steel build.
    Easy to pour without removing stopper.
  • 9.6
    2
    Thermos
    20% Off

    Thermos - Stainless Steel Direct Drink Flask (470ml) Reusable Insulated Thermal Coffee Cup for Hot or Cold Drinks, Vacuum Sealed Water Flask with a Leak-Proof Lid, 10hr Hot/24hr Cold

    9.9 Watertight
    9.9 Simple to use
    9.9 Easy to grip

    Why we love it

    Excellent temperature retention for hot and cold drinks.
    Durable stainless steel build ensures long-lasting use.
    Compact, leak-proof design perfect for travel and storage.
  • 9.3
    3
    Thermos
    15% Off

    Thermos Thermo Cafe S/S Flask - 181109, Silver, 0.5 Litre

    9.8 Watertight
    9.6 Simple to clean
    9.6 lasts a long time

    Why we love it

    Keeps drinks hot or cold for hours.
    Durable and easy to carry.
    Comfortable to hold with hot liquids.

Our ranking system

The TopChoice.co.uk Team selects top-of-the-line items from a wide selection and conducts rigorous evaluations on almost all the products available on the internet. We rank each product based on how well it matches our criteria.We can ensure that the product is well-tested with the help of our expertise, experts, and artificial intelligence technology. TopChoice.co.uk requires consistent care for the products we review, ensuring that our assessments are always accurate and up to date.

Features

Our team of experts analyzes key attributes, capabilities, significance, and many more depending on the type of product to determine its effectiveness.
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Consumer Reviews

We ensure an evaluation of the ratings using references all over the internet for each product. With the help of our AI technology and professional review teams, we give weight to the worth of individual user experiences.
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Popularity

Popularity is an important criterion in choosing a product. Several factors contribute to the popularity of the products on our site, including prestige, relevance, reputation, news, and more.
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Value for money

TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.

When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.