Subway Tuna UK 2026: Calories, Prices, Protein, and Menu Guide
Subway tuna is one of those orders people make on autopilot. It’s cold, creamy, filling, and reliably there on every menu board. But once you start asking proper questions about how many calories are in it, what does it cost this year, and is it actually a healthy choice, the answers get fuzzier than they should be.
This guide pulls the useful facts into one place. You’ll find UK prices for 2026, calories across the sub, wrap, salad and jacket potato, allergen notes, and some practical ways to build a better Subway tuna sandwich without ruining what makes it good.
Prices come from our own checks of store menus, the Subway app, and customer receipts, rather than a single official national list. Subway doesn’t publish one. If you want to compare it against everything else on offer, our full Subway UK menu with prices covers the lot.
What Is Subway Tuna?
The Subway tuna sub is listed on the UK menu as Tuna Mayo. It’s a cold filling of flaked tuna folded through mayonnaise, served in your choice of bread with whatever salad and sauces you pick.
It sits in the classic range alongside Turkey Breast, Italian B.M.T., and Veggie Delite, and you can order it as a 6-inch sub, a footlong, a wrap, a salad, or, new for 2026, a jacket potato.
It has stayed on the menu for years because it works for a wide range of people. It’s a straightforward pescatarian option, it isn’t spicy, and it takes toppings well. Cucumber, sweetcorn-style crunch from peppers and onion, and a squeeze of something sharp all suit it.
Subway Tuna Prices UK 2026
Franchise pricing is the thing to understand first. Most UK Subway stores are independently owned, so the same sub can cost a different amount in Leeds than in central London, where prices tend to run 5 to 10 percent above the national average.
Here are the typical ranges from our checks:
| Size | Typical price (UK, 2026) |
|---|---|
| Subway tuna, 6-inch | £4.99 to £5.79 |
| Subway tuna footlong | £7.99 to £8.99 |
| Tuna mayo wrap | around £7.19 |
| Tuna Mayo salad | around £7.99 |
| Tuna, mayo, and cheese jacket potato | around £8.82 |
Some individual store menus list a Tuna Mayo sub at around £7.25, which is a reminder of how much branch pricing can differ. The only reliable way to get your exact UK Subway tuna price figure is to select your branch in the Subway app before ordering.
How Much Is a Subway Tuna Footlong in the UK?
Expect roughly £7.99 to £8.99 in most branches. That puts it level with the Turkey Breast and Meatball Marinara footlongs and below Philly Steak £9.29 to £10.29 and the Signature Series subs.
If you’re choosing between sizes, the footlong is usually cheaper per inch than buying two 6-inch subs.
Subway Tuna Meal Deal Prices
A Subway tuna meal deal bundles your sub, wrap, or salad with a drink and a side. In-store, our checks put typical starting prices at:
- 6-inch meal deal: from £6.99
- Footlong meal deal: from £8.99
- Wrap or salad meal deal: from £7.49
Delivery is a different story. A London branch listing on Just Eat shows a 6-inch meal deal at £10.55 and a footlong meal deal at £13.77, each including a sub, side, drink, and cookie.
Those bundles include a cookie, and delivery menus generally carry a markup, so don’t compare them directly with in-store prices. If you want the cheapest route, check the app first for app-only offers and Subway Rewards points.
How Many Calories Are in a Subway Tuna Sub?
This is the question most people actually come here for, and the answer depends on the format you order.
| Format | Calories |
|---|---|
| Tuna Mayo sub (6-inch) | 440 kcal |
| Tuna mayo wrap | 427 kcal |
| Tuna Mayo and cheese jacket potato | 558 kcal |
| Tuna Mayo salad | 166 kcal |
A Subway tuna footlong is roughly double the 6-inch figure because you’re getting twice the bread and twice the filling. The calorie numbers above assume standard builds, so cheese, extra sauce, crisps, and a cookie will all push the total up.
The salad figure is striking. Dropping the bread takes the tuna from a 440 kcal lunch to a 166 kcal one, which is why the salad is the best choice if you’re counting calories.
Subway Tuna Compared With Other Subs
For context, here’s how the 6-inch Tuna Mayo stacks up against a few other popular choices:
- Veggie Delite: 227 kcal, the lightest sub on the menu
- Turkey Breast: 312 kcal
- Chicken Breast: 340 kcal
- Chicken Tikka: 345 kcal
- Meatball Marinara: 440 kcal
- Tuna Mayo: 440 kcal
So the Subway tuna vs. chicken comparison is clear on calories. Plain grilled chicken breast comes in about 100 kcal lower because tuna mayo carries the mayonnaise with it. Tuna lands at the same figure as the Meatball Marinara, which surprises a lot of people who assume fish means light.
Is Subway Tuna Healthy?
It depends on how you build it. Tuna itself is a lean source of protein, and fish is a food most UK dietary guidance encourages eating regularly. The catch is the mayonnaise, which is what lifts the calories and fat.
The honest summary:
- Good: high protein for the price, filling, and easy to pair with plenty of vegetables.
- Less good: the mayo-based filling is calorie-dense compared with grilled chicken or turkey, and adding cheese, extra sauce, and crisps stacks up quickly.
To make your Subway tuna sandwich a healthier meal, choose wholegrain bread if your branch has it, add every vegetable on offer extra veg costs nothing, skip the cheese, and go easy on creamy sauces. Better still, switch to the salad, which brings it down to 166 kcal.
How Much Protein Is in a Subway Tuna Sandwich?
Tuna is naturally protein-rich, so a 6-inch Subway tuna sub should deliver a solid amount, in the region of 20 grams or more including the bread.
Treat that as an estimate, because I haven’t confirmed Subway’s current official figure. Subway publishes a nutrition calculator on its UK site, and that is the place to check if you’re tracking macros.
If protein is your main goal, a footlong doubles the filling, and ordering the salad version keeps calories low while preserving most of the tuna.
What Is in Subway Tuna? Ingredients and Allergens
The filling is tuna and mayonnaise. Around that, your sub is made up of:
- Bread: options vary by branch but commonly include white, wholegrain, and Italian herbs and cheese
- Fresh veggies: lettuce, tomato, cucumber, red onion, green peppers, olives, pickles, and jalapeños
- Sauces: your choice, and mostly free to add
- Cheese: optional
Subway Tuna Allergens
If you have an allergy, check these before ordering:
- Fish: obviously present in the filling
- Egg: mayonnaise is egg-based
- Gluten: from the bread and wrap
- Milk: if you add cheese or choose a cheese bread
- Mustard, sesame, and soya: may appear in certain breads and sauces
Cross-contact is possible in any kitchen where everything is prepared on the same counter. For celiac disease, a gluten-free roll is available in most stores but is prepared in a shared area, so talk to staff first. Always check the current allergen guide on Subway’s official website, because recipes can change.
Is Subway Tuna Real Tuna?
The filling is sold as tuna mayo, meaning flaked tuna mixed with mayonnaise. If sourcing matters to you, Subway publishes its seafood sourcing policy on its official site, and that is the best place to read the current commitments rather than relying on a third-party summary.
Does Subway Tuna Contain Mayo?
Yes. The mayonnaise is mixed into the filling itself, so you can’t remove it. If you want less, your best options are the salad, a smaller size, or choosing a different protein.
Subway Tuna Sub, Wrap, Salad, and Melt: Which to Choose?
Subway tuna wrap: Around £7.19 and 427 kcal. Calories land close to the 6-inch sub, but the wrap feels more compact and is easier to eat on the move.
Subway tuna salad: Around £7.99 and 166 kcal. This is the lightest version by far and a good fit for a high-protein, low-calorie lunch.
Subway tuna melt: Many people search for this, but it isn’t a standard listed item on the current UK menu data we track. You can make your own by adding cheese and asking for the sub to be toasted. That takes it above the 440 kcal base figure, so budget for it.
Jacket potato: New for 2026, the Tuna Mayo and Cheese jacket potato costs around £8.82 and comes in at 558 kcal. It’s the most filling option and a good choice on a cold day.
What Sauces Go Best With Subway Tuna?
Because the filling is already creamy, the sauces that work best are the ones that add contrast rather than more richness:
- Sweet onion or sweet chili for a touch of sweetness against the savory fish
- Mustard-style sauces for a sharp kick
- Salt, pepper, and vinegar for a light, fresh finish on salads
- Hot chili or jalapeños if you want heat
A sauce that works with almost any filling is a fine starting point, but avoid doubling up on mayo-based sauces, which adds calories without improving the taste. For tuna and cucumber fans, pile on the cucumber, add a little salt and pepper, and keep the sauce minimal.
Can You Get Subway Tuna as a Salad or Wrap?
Yes, both. The Subway tuna salad and the Tuna Mayo wrap are standard menu formats, as is the jacket potato. Every sub, wrap and salad can be customised with your choice of vegetables and sauces, and most swaps are free.
What Is the Healthiest Sandwich at Subway?
Going by calories, the best subs for a lighter lunch are:
- Veggie Delite (6 inch): 227 kcal
- Turkey Breast (6 inch): 312 kcal
- Chicken Breast (6 inches): 340 kcal
If you’re open to salads, the numbers drop dramatically: Turkey breast salad is 119 kcal, ham is 73 kcal, and the tuna mayo salad is 166 kcal.
For the best balance of protein and calories, a chicken or turkey sub or a tuna salad all do the job. Our Subway calories and nutrition guide has the full comparison if you want to plan a whole meal.
Pescatarian and Dietary Notes
The Subway tuna sub works for pescatarians as long as you check the sauces and bread, since a few contain animal-derived ingredients depending on the branch. It isn’t vegan or vegetarian.
If that’s what you need, the Veggie Delite and Plant Patty are the main options, and we cover them in our Subway vegan menu UK guide. Halal availability depends on the store, and it relates to the meat, so check your branch.
Ways to Save on Subway Tuna
- Go footlong and split it: It’s cheaper per inch than two 6-inch subs.
- Use the app: App-only deals and Subway Rewards points aren’t always advertised in-store.
- Ask about student discounts: Many branches offer 10 to 15 percent off with a valid student card, UNiDAYS or Student Beans.
- Add free veg: Extra vegetables cost nothing and make a 6-inch feel like a fuller meal.
- Compare meal deals: Our Subway meal deals guide lists the current combos.
Opening Hours, Delivery and Finding a Store
Most UK branches open between 7:00 and 9:00 AM and close between 9:30 PM and late evening, with shorter hours on Sundays (typically 8:00 to 9:00 AM until about 6:30 to 10:00 PM).
Hours vary by store, so check the app. Delivery is available through Uber Eats, Just Eat and Deliveroo, and you can order ahead for collection through the Subway app.
Final Thoughts
The Subway tuna sub is a dependable, protein-rich pick, but it’s not the lightest thing on the menu because of the mayo. At around £5 for a 6-inch or £8 to £9 for a footlong, it’s priced fairly against the rest of the range. Order it as a salad if you want to keep calories low, or as a footlong if you’re hungry and want value.
Before you go, check your local branch’s price in the app, and browse the Subway footlong prices guide to see how tuna compares with the rest of the menu.
Prices and nutrition figures are typical ranges and may change. Always confirm with your local store or the official Subway app before ordering. This is an independent guide and is not affiliated with Subway.
